Distribution Date:

Determination Date:

06/25/2007

06/18/2007

HSI Asset Corporation Trust

Mortgage Pass-Through Certificates

Series 2007-OPT1


*CONTACT INFORMATION*

Depositor	HSI Asset Securitization Corporation
	452 Fifth Avenue
	New York, New York 10018

Trustee	Deutsche Bank National Trust Company
	1761 East St. Andrew Place
	Santa Ana, CA 92705

Master Servicer	CitiMortgage, Inc.
	4000 Regent Blvd., 3rd Floor
	Irving, TX 75063


*CONTENTS*

Distribution Summary	2

Distribution Summary (Factors)	3

Interest Distribution	4

Principal Distribution	5

Reconciliation Detail	6

Collateral Summary	7

Delinquency Information	10

Standard Prepayment and Default Information	13

Credit Enhancement	14

Distribution Waterfall Detail	15

Other Information	17



Deal Contact:	Jennifer McCourt	Citibank, N.A.
	jennifer.mccourt@citigroup.com	Agency and Trust
	Tel: (212) 816-5680	388 Greenwich Street, 14th Floor
	Fax: (212) 816-5527	New York, NY 10013

Reports Available at www.sf.citidirect.com

Page 1 of 18

Distribution Date:

Determination Date:

06/25/2007

06/18/2007

HSI Asset Corporation Trust

Mortgage Pass-Through Certificates

Series 2007-OPT1

*Distribution Summary*
*DISTRIBUTION IN DOLLARS*
Class	Original Balance	Prior Principal Balance	Pass- Through Rate	Accrual Day Count	Accrual Dates	Interest Distributed	Principal Distributed	Total Distributed	Deferred Interest	Realized Loss	Current Principal Balance
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)=(7+8)	(10)	(11)	(12)=(3-8+10-11)
IA	438,787,000.00	401,350,013.88	5.460000%	30 / 360	05/25 - 06/24	1,887,013.98	9,400,417.66	11,287,431.64	0.00	0.00	391,949,596.22
IIA1	105,043,000.00	90,749,490.79	5.370000%	30 / 360	05/25 - 06/24	419,640.77	4,198,939.92	4,618,580.69	0.00	0.00	86,550,550.87
IIA2	24,118,000.00	24,118,000.00	5.430000%	30 / 360	05/25 - 06/24	112,771.75	0.00	112,771.75	0.00	0.00	24,118,000.00
IIA3	40,466,000.00	40,466,000.00	5.470000%	30 / 360	05/25 - 06/24	190,606.10	0.00	190,606.10	0.00	0.00	40,466,000.00
IIA4	6,266,000.00	6,266,000.00	5.540000%	30 / 360	05/25 - 06/24	29,892.30	0.00	29,892.30	0.00	0.00	6,266,000.00
M1	35,013,000.00	35,013,000.00	5.550000%	30 / 360	05/25 - 06/24	167,332.96	0.00	167,332.96	0.00	0.00	35,013,000.00
M2	24,898,000.00	24,898,000.00	5.590000%	30 / 360	05/25 - 06/24	119,849.29	0.00	119,849.29	0.00	0.00	24,898,000.00
M3	15,173,000.00	15,173,000.00	5.630000%	30 / 360	05/25 - 06/24	73,559.55	0.00	73,559.55	0.00	0.00	15,173,000.00
M4	14,005,000.00	14,005,000.00	5.700000%	30 / 360	05/25 - 06/24	68,741.21	0.00	68,741.21	0.00	0.00	14,005,000.00
M5	13,227,000.00	13,227,000.00	5.710000%	30 / 360	05/25 - 06/24	65,036.42	0.00	65,036.42	0.00	0.00	13,227,000.00
M6	10,504,000.00	10,504,000.00	5.780000%	30 / 360	05/25 - 06/24	52,280.74	0.00	52,280.74	0.00	0.00	10,504,000.00
M7	10,504,000.00	10,504,000.00	6.270000%	30 / 360	05/25 - 06/24	56,712.85	0.00	56,712.85	0.00	0.00	10,504,000.00
M8	5,447,000.00	5,447,000.00	6.870000%	30 / 360	05/25 - 06/24	32,223.54	0.00	32,223.54	0.00	0.00	5,447,000.00
M9	10,504,000.00	10,504,000.00	7.820000%	30 / 360	05/25 - 06/24	70,732.77	0.00	70,732.77	0.00	0.00	10,504,000.00
M10	9,337,000.00	9,337,000.00	8.052518%	30 / 360	05/25 - 06/24	66,894.42	0.00	66,894.42	0.00	0.00	9,337,000.00
P	100.00	100.00	0.000000%	30 / 360		192,778.57	0.00	192,778.57	0.00	0.00	100.00
X	14,783,741.00	14,783,440.95	1.310634%	30 / 360		1,843,366.46	0.00	1,843,366.46	0.00	0.00	14,783,440.95
R	0.00	0.00	0.000000%	30 / 360		0.00	0.00	0.00	0.00	0.00	0.00
Totals	778,075,841.00	726,345,045.62				5,449,433.68	13,599,357.58	19,048,791.26	0.00	0.00	712,745,688.04

Reports Available at www.sf.citidirect.com

Page 2 of 18

Distribution Date:

Determination Date:

06/25/2007

06/18/2007

HSI Asset Corporation Trust

Mortgage Pass-Through Certificates

Series 2007-OPT1

*Distribution Summary (Factors)*
*PER $1,000 OF ORIGINAL BALANCE*
Class	CUSIP	Record Date	Prior Principal Balance	Interest Distributed	Principal Distributed	Total Distributed	Deferred Interest	Realized Loss	Current Principal Balance
			(3/2 x 1000)	(7/2 x 1000)	(8/2 x 1000)	(9/2 x 1000)	(10/2 x 1000)	(11/2 x 1000)	(12/2 x 1000)
IA	40431JAA1	06/22/2007	914.680731	4.300524	21.423647	25.724171	0.000000	0.000000	893.257084
IIA1	40431JAB9	06/22/2007	863.927066	3.994943	39.973534	43.968477	0.000000	0.000000	823.953532
IIA2	40431JAC7	06/22/2007	1,000.000000	4.675833	0.000000	4.675833	0.000000	0.000000	1,000.000000
IIA3	40431JAD5	06/22/2007	1,000.000000	4.710278	0.000000	4.710278	0.000000	0.000000	1,000.000000
IIA4	40431JAE3	06/22/2007	1,000.000000	4.770555	0.000000	4.770555	0.000000	0.000000	1,000.000000
M1	40431JAF0	06/22/2007	1,000.000000	4.779167	0.000000	4.779167	0.000000	0.000000	1,000.000000
M2	40431JAG8	06/22/2007	1,000.000000	4.813611	0.000000	4.813611	0.000000	0.000000	1,000.000000
M3	40431JAH6	06/22/2007	1,000.000000	4.848056	0.000000	4.848056	0.000000	0.000000	1,000.000000
M4	40431JAJ2	06/22/2007	1,000.000000	4.908333	0.000000	4.908333	0.000000	0.000000	1,000.000000
M5	40431JAK9	06/22/2007	1,000.000000	4.916944	0.000000	4.916944	0.000000	0.000000	1,000.000000
M6	40431JAL7	06/22/2007	1,000.000000	4.977222	0.000000	4.977222	0.000000	0.000000	1,000.000000
M7	40431JAM5	06/22/2007	1,000.000000	5.399167	0.000000	5.399167	0.000000	0.000000	1,000.000000
M8	40431JAN3	06/22/2007	1,000.000000	5.915833	0.000000	5.915833	0.000000	0.000000	1,000.000000
M9	40431JAP8	06/22/2007	1,000.000000	6.733889	0.000000	6.733889	0.000000	0.000000	1,000.000000
M10	40431JAQ6	06/22/2007	1,000.000000	7.164445	0.000000	7.164445	0.000000	0.000000	1,000.000000
P	40431JAR4	05/31/2007	1,000.000000	1,927,785.700000	0.000000	1,927,785.700000	0.000000	0.000000	1,000.000000
X	40431JAS2	05/31/2007	999.979704	124.688769	0.000000	124.688769	0.000000	0.000000	999.979704
R	40431JAT0	05/31/2007	0.000000	0.000000	0.000000	0.000000	0.000000	0.000000	0.000000

Reports Available at www.sf.citidirect.com

Page 3 of 18

Distribution Date:

Determination Date:

06/25/2007

06/18/2007

HSI Asset Corporation Trust

Mortgage Pass-Through Certificates

Series 2007-OPT1

*Interest Distribution Detail*
*DISTRIBUTION IN DOLLARS*
Class	Prior Principal Balance	Pass- Through Rate	Next Pass- Through Rate	Interest Accrual Day Cnt Fraction	Optimal Accrued Interest	Prior Unpaid Interest	Interest on Prior Unpaid Interest	Non-Recov. Interest Shortfall	Interest Due	Deferred Interest	Interest Distributed	Current Unpaid Interest
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)=(6)+(7)+(8)-(9)	(11)	(12)	(13)=(10)-(11)-(12)
IA	401,350,013.88	5.46000%	5.46000%	30 / 360	1,887,013.98	0.00	0.00	0.00	1,887,013.98	0.00	1,887,013.98	0.00
IIA1	90,749,490.79	5.37000%	5.37000%	30 / 360	419,640.77	0.00	0.00	0.00	419,640.77	0.00	419,640.77	0.00
IIA2	24,118,000.00	5.43000%	5.43000%	30 / 360	112,771.75	0.00	0.00	0.00	112,771.75	0.00	112,771.75	0.00
IIA3	40,466,000.00	5.47000%	5.47000%	30 / 360	190,606.10	0.00	0.00	0.00	190,606.10	0.00	190,606.10	0.00
IIA4	6,266,000.00	5.54000%	5.54000%	30 / 360	29,892.30	0.00	0.00	0.00	29,892.30	0.00	29,892.30	0.00
M1	35,013,000.00	5.55000%	5.55000%	30 / 360	167,332.96	0.00	0.00	0.00	167,332.96	0.00	167,332.96	0.00
M2	24,898,000.00	5.59000%	5.59000%	30 / 360	119,849.29	0.00	0.00	0.00	119,849.29	0.00	119,849.29	0.00
M3	15,173,000.00	5.63000%	5.63000%	30 / 360	73,559.55	0.00	0.00	0.00	73,559.55	0.00	73,559.55	0.00
M4	14,005,000.00	5.70000%	5.70000%	30 / 360	68,741.21	0.00	0.00	0.00	68,741.21	0.00	68,741.21	0.00
M5	13,227,000.00	5.71000%	5.71000%	30 / 360	65,036.42	0.00	0.00	0.00	65,036.42	0.00	65,036.42	0.00
M6	10,504,000.00	5.78000%	5.78000%	30 / 360	52,280.74	0.00	0.00	0.00	52,280.74	0.00	52,280.74	0.00
M7	10,504,000.00	6.27000%	6.27000%	30 / 360	56,712.85	0.00	0.00	0.00	56,712.85	0.00	56,712.85	0.00
M8	5,447,000.00	6.87000%	6.87000%	30 / 360	32,223.54	0.00	0.00	0.00	32,223.54	0.00	32,223.54	0.00
M9	10,504,000.00	7.82000%	7.82000%	30 / 360	70,732.77	0.00	0.00	0.00	70,732.77	0.00	70,732.77	0.00
M10	9,337,000.00	8.05252%	8.05252%	30 / 360	66,894.42	0.00	0.00	0.00	66,894.42	0.00	66,894.42	0.00
P	100.00	0.00000%	0.00000%	30 / 360	192,778.57	0.00	0.00	0.00	192,778.57	0.00	192,778.57	0.00
X	14,783,440.95	1.31063%	0.00000%	30 / 360	1,845,517.07	89.78	0.00	0.00	1,845,606.85	0.00	1,843,366.46	2,240.39
R	0.00	0.00000%	0.00000%	30 / 360	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
Totals	726,345,045.62				5,451,584.29	89.78	0.00	0.00	5,451,674.07	0.00	5,449,433.68	2,240.39

Reports Available at www.sf.citidirect.com

Page 4 of 18

Distribution Date:

Determination Date:

06/25/2007

06/18/2007

HSI Asset Corporation Trust

Mortgage Pass-Through Certificates

Series 2007-OPT1

*Principal Distribution Detail*
*DISTRIBUTION IN DOLLARS*
Class	Original Balance	Prior Principal Balance	Principal Distribution	Accreted Principal	Current Realized Losses	Current Principal Recoveries	Current Principal Balance	Cumulative Realized Losses
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)=(3)-(4)+(5)-(6)+(7)	(9)
IA	438,787,000.00	401,350,013.88	9,400,417.66	0.00	0.00	0.00	391,949,596.22	0.00
IIA1	105,043,000.00	90,749,490.79	4,198,939.92	0.00	0.00	0.00	86,550,550.87	0.00
IIA2	24,118,000.00	24,118,000.00	0.00	0.00	0.00	0.00	24,118,000.00	0.00
IIA3	40,466,000.00	40,466,000.00	0.00	0.00	0.00	0.00	40,466,000.00	0.00
IIA4	6,266,000.00	6,266,000.00	0.00	0.00	0.00	0.00	6,266,000.00	0.00
M1	35,013,000.00	35,013,000.00	0.00	0.00	0.00	0.00	35,013,000.00	0.00
M2	24,898,000.00	24,898,000.00	0.00	0.00	0.00	0.00	24,898,000.00	0.00
M3	15,173,000.00	15,173,000.00	0.00	0.00	0.00	0.00	15,173,000.00	0.00
M4	14,005,000.00	14,005,000.00	0.00	0.00	0.00	0.00	14,005,000.00	0.00
M5	13,227,000.00	13,227,000.00	0.00	0.00	0.00	0.00	13,227,000.00	0.00
M6	10,504,000.00	10,504,000.00	0.00	0.00	0.00	0.00	10,504,000.00	0.00
M7	10,504,000.00	10,504,000.00	0.00	0.00	0.00	0.00	10,504,000.00	0.00
M8	5,447,000.00	5,447,000.00	0.00	0.00	0.00	0.00	5,447,000.00	0.00
M9	10,504,000.00	10,504,000.00	0.00	0.00	0.00	0.00	10,504,000.00	0.00
M10	9,337,000.00	9,337,000.00	0.00	0.00	0.00	0.00	9,337,000.00	0.00
P	100.00	100.00	0.00	0.00	0.00	0.00	100.00	0.00
X	14,783,741.00	14,783,440.95	0.00	0.00	0.00	0.00	14,783,440.95	0.00
R	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
Totals	778,075,841.00	726,345,045.62	13,599,357.58	0.00	0.00	0.00	712,745,688.04	0.00

Reports Available at www.sf.citidirect.com

Page 5 of 18

Distribution Date:

Determination Date:

06/25/2007

06/18/2007

HSI Asset Corporation Trust

Mortgage Pass-Through Certificates

Series 2007-OPT1

Reconciliation Detail


*SOURCE OF FUNDS*

Interest Funds Available
Scheduled Interest	5,217,989.44
Uncompensated PPIS	0.00
Relief Act Interest Shortfall	0.00
Interest Adjustments	0.00
Total Interest Funds Available:		5,217,989.44
Principal Funds Available
Scheduled Principal	307,980.97
Curtailments	211,280.55
Prepayments in Full	13,080,096.06
Liquidation Proceeds	0.00
Adjustment Principal	0.00
Repurchased Principal	0.00
Substitution Principal	0.00
Other Principal	0.00
Total Principal Funds Available:		13,599,357.58
Other Funds Available
Swap Amount	228,726.12
Prepayment Charges	192,778.57
Other Charges	0.00
Total Other Funds Available:		421,504.69
Total Funds Available		19,238,851.71


*ALLOCATION OF FUNDS*

Scheduled Fees
Credit Risk Manager Fee	8,474.03
Master Servicing Fee	0.00
Servicing Fee	181,586.42
Trustee Fee	0.00
Total Scheduled Fees:		190,060.45
Additional Fees, Expenses, etc.
Extraordinary Trust Fund Expenses	0.00
Other Expenses	0.00
Payment to the Swap Counterparty	0.00
Total Additional Fees, Expenses, etc.:		0.00
Distribution to Certificateholders
Interest Distribution	5,449,433.68
Principal Distribution	13,599,357.58
Total Distribution to Certificateholders:		19,048,791.26
Total Funds Allocated		19,238,851.71

Reports Available at www.sf.citidirect.com

Page 6 of 18

Distribution Date:

Determination Date:

06/25/2007

06/18/2007

HSI Asset Corporation Trust

Mortgage Pass-Through Certificates

Series 2007-OPT1

*Collateral Summary - Group 1*

*ASSET CHARACTERISTICS*

	Cut-Off			Prior			Current

Aggregate Stated Principal Balance		555,426,666.34			517,989,517.99			508,589,100.33

Loan Count		3,387			3,209			3,169

Weighted Average Coupon Rate (WAC)		8.726134	%		8.725620	%		8.727492	%

Net Weighted Average Coupon Rate (Net WAC)		8.426134	%		8.425620	%		8.427492	%

Weighted Average Remaining Term (WART in months)		0			352			351


*AVAILABLE PRINCIPAL*

Scheduled Principal	225,990.94
Curtailments	207,316.85
Prepayments in Full	8,967,109.87
Liquidation Proceeds	0.00
Repurchased Principal	0.00
Substitution Principal	0.00
Adjustment Principal	0.00
Other Principal	0.00
TOTAL AVAILABLE PRINCIPAL	9,400,417.66

Current Realized Losses	0.00
Realized Losses and Recoveries from Prior Periods	0.00
Cumulative Realized Losses	0.00


*AVAILABLE INTEREST*

Scheduled Interest		3,766,483.41

	Supplemental Interest Trust Amount	228,726.12
Less:	Servicing Fee	129,497.40
	Master Servicing Fee	0.00
	Insurance Fee	0.00
	Trustee Fee	0.00
	Uncompensated PPIS	0.00
	Relief Act Interest Shortfall	0.00
	Other Amounts	0.00
TOTAL AVAILABLE INTEREST		3,865,712.13

Reports Available at www.sf.citidirect.com

Page 7 of 18

Distribution Date:

Determination Date:

06/25/2007

06/18/2007

HSI Asset Corporation Trust

Mortgage Pass-Through Certificates

Series 2007-OPT1

*Collateral Summary - Group 2*

*ASSET CHARACTERISTICS*

	Cut-Off			Prior			Current

Aggregate Stated Principal Balance		222,649,174.69			208,355,527.66			204,156,587.74

Loan Count		734			699			689

Weighted Average Coupon Rate (WAC)		8.360273	%		8.359784	%		8.356966	%

Net Weighted Average Coupon Rate (Net WAC)		8.060273	%		8.059784	%		8.056966	%

Weighted Average Remaining Term (WART in months)		0			352			351


*AVAILABLE PRINCIPAL*

Scheduled Principal	81,990.03
Curtailments	3,963.70
Prepayments in Full	4,112,986.19
Liquidation Proceeds	0.00
Repurchased Principal	0.00
Substitution Principal	0.00
Adjustment Principal	0.00
Other Principal	0.00
TOTAL AVAILABLE PRINCIPAL	4,198,939.92

Current Realized Losses	0.00
Realized Losses and Recoveries from Prior Periods	0.00
Cumulative Realized Losses	0.00


*AVAILABLE INTEREST*

Scheduled Interest		1,451,506.03
Less:	Servicing Fee	52,089.02
	Master Servicing Fee	0.00
	Insurance Fee	0.00
	Trustee Fee	0.00
	Uncompensated PPIS	0.00
	Relief Act Interest Shortfall	0.00
	Other Amounts	0.00
TOTAL AVAILABLE INTEREST		1,399,417.01

Reports Available at www.sf.citidirect.com

Page 8 of 18

Distribution Date:

Determination Date:

06/25/2007

06/18/2007

HSI Asset Corporation Trust

Mortgage Pass-Through Certificates

Series 2007-OPT1

*Collateral Summary - Total*

*ASSET CHARACTERISTICS*

	Cut-Off			Prior			Current

Aggregate Stated Principal Balance		778,075,841.03			726,345,045.65			712,745,688.07

Loan Count		4,121			3,908			3,858

Weighted Average Coupon Rate (WAC)		8.621442	%		8.620678	%		8.625004	%

Net Weighted Average Coupon Rate (WAC)		8.321442	%		8.320678	%		8.325004	%

Weighted Average Remaining Term (WART in months)		0			352			351


*AVAILABLE PRINCIPAL*

Scheduled Principal	307,980.97
Curtailments	211,280.55
Prepayments in Full	13,080,096.06
Liquidation Proceeds	0.00
Repurchased Principal	0.00
Substitution Principal	0.00
Adjustment Principal	0.00
Other Principal	0.00
TOTAL AVAILABLE PRINCIPAL	13,599,357.58

Current Realized Losses	0.00
Realized Losses and Recoveries from Prior Periods	0.00
Cumulative Realized Losses	0.00


*AVAILABLE INTEREST*

Scheduled Interest		5,217,989.44

	Supplemental Interest Trust Amount	228,726.12
Less:	Servicing Fee	181,586.42
	Master Servicing Fee	0.00
	Insurance Fee	0.00
	Trustee Fee	0.00
	Uncompensated PPIS	0.00
	Relief Act Interest Shortfall	0.00
	Other Amounts	0.00
TOTAL AVAILABLE INTEREST		5,265,129.14

Reports Available at www.sf.citidirect.com

Page 9 of 18

Distribution Date:

Determination Date:

06/25/2007

06/18/2007

HSI Asset Corporation Trust

Mortgage Pass-Through Certificates

Series 2007-OPT1

*Delinquency Information*
*GROUP 1*

	31-60 Days			61-90 Days			91+ Days			Totals
Delinquency
Scheduled Principal Balance		21,478,255.24			11,696,507.30			9,261,256.44			42,436,018.98
Percentage of Total Pool Balance		4.2231	%		2.2998	%		1.8210	%		8.3439	%
Number of Loans		124			63			53			240
Percentage of Total Loans		3.9129	%		1.9880	%		1.6725	%		7.5734	%
Bankruptcy
Scheduled Principal Balance		0.00			0.00			0.00			0.00
Percentage of Total Pool Balance		0.0000	%		0.0000	%		0.0000	%		0.0000	%
Number of Loans		0			0			0			0
Percentage of Total Loans		0.0000	%		0.0000	%		0.0000	%		0.0000	%
Foreclosure
Scheduled Principal Balance		0.00			0.00			0.00			0.00
Percentage of Total Pool Balance		0.0000	%		0.0000	%		0.0000	%		0.0000	%
Number of Loans		0			0			0			0
Percentage of Total Loans		0.0000	%		0.0000	%		0.0000	%		0.0000	%
REO
Scheduled Principal Balance		0.00			0.00			0.00			0.00
Percentage of Total Pool Balance		0.0000	%		0.0000	%		0.0000	%		0.0000	%
Number of Loans		0			0			0			0
Percentage of Total Loans		0.0000	%		0.0000	%		0.0000	%		0.0000	%
Total
Scheduled Principal Balance		21,478,255.24			11,696,507.30			9,261,256.44			42,436,018.98
Percentage of Total Pool Balance		4.2231	%		2.2998	%		1.8210	%		8.3439	%
Number of Loans		124			63			53			240
Percentage of Total Loans		3.9129	%		1.9880	%		1.6725	%		7.5734	%

Principal and Interest Advance Required and Received		3,636,360.73

Reports Available at www.sf.citidirect.com

Page 10 of 18

Distribution Date:

Determination Date:

06/25/2007

06/18/2007

HSI Asset Corporation Trust

Mortgage Pass-Through Certificates

Series 2007-OPT1

*Delinquency Information*
*GROUP 2*

	31-60 Days			61-90 Days			91+ Days			Totals
Delinquency
Scheduled Principal Balance		4,769,916.57			5,779,793.23			5,958,994.57			16,508,704.37
Percentage of Total Pool Balance		2.3364	%		2.8311	%		2.9188	%		8.0863	%
Number of Loans		16			15			18			49
Percentage of Total Loans		2.3222	%		2.1771	%		2.6125	%		7.1118	%
Bankruptcy
Scheduled Principal Balance		0.00			0.00			0.00			0.00
Percentage of Total Pool Balance		0.0000	%		0.0000	%		0.0000	%		0.0000	%
Number of Loans		0			0			0			0
Percentage of Total Loans		0.0000	%		0.0000	%		0.0000	%		0.0000	%
Foreclosure
Scheduled Principal Balance		0.00			0.00			0.00			0.00
Percentage of Total Pool Balance		0.0000	%		0.0000	%		0.0000	%		0.0000	%
Number of Loans		0			0			0			0
Percentage of Total Loans		0.0000	%		0.0000	%		0.0000	%		0.0000	%
REO
Scheduled Principal Balance		0.00			0.00			0.00			0.00
Percentage of Total Pool Balance		0.0000	%		0.0000	%		0.0000	%		0.0000	%
Number of Loans		0			0			0			0
Percentage of Total Loans		0.0000	%		0.0000	%		0.0000	%		0.0000	%
Total
Scheduled Principal Balance		4,769,916.57			5,779,793.23			5,958,994.57			16,508,704.37
Percentage of Total Pool Balance		2.3364	%		2.8311	%		2.9188	%		8.0863	%
Number of Loans		16			15			18			49
Percentage of Total Loans		2.3222	%		2.1771	%		2.6125	%		7.1118	%

Principal and Interest Advance Required and Received		1,447,249.59

Reports Available at www.sf.citidirect.com

Page 11 of 18

Distribution Date:

Determination Date:

06/25/2007

06/18/2007

HSI Asset Corporation Trust

Mortgage Pass-Through Certificates

Series 2007-OPT1

*Delinquency Information*
*GROUP TOTALS*

	31-60 Days			61-90 Days			91+ Days			Totals
Delinquency
Scheduled Principal Balance		26,248,171.81			17,476,300.53			15,220,251.01			58,944,723.35
Percentage of Total Pool Balance		3.6827	%		2.4520	%		2.1354	%		8.2701	%
Number of Loans		140			78			71			289
Percentage of Total Loans		3.6288	%		2.0218	%		1.8403	%		7.4909	%
Bankruptcy
Scheduled Principal Balance		0.00			0.00			0.00			0.00
Percentage of Total Pool Balance		0.0000	%		0.0000	%		0.0000	%		0.0000	%
Number of Loans		0			0			0			0
Percentage of Total Loans		0.0000	%		0.0000	%		0.0000	%		0.0000	%
Foreclosure
Scheduled Principal Balance		0.00			0.00			0.00			0.00
Percentage of Total Pool Balance		0.0000	%		0.0000	%		0.0000	%		0.0000	%
Number of Loans		0			0			0			0
Percentage of Total Loans		0.0000	%		0.0000	%		0.0000	%		0.0000	%
REO
Scheduled Principal Balance		0.00			0.00			0.00			0.00
Percentage of Total Pool Balance		0.0000	%		0.0000	%		0.0000	%		0.0000	%
Number of Loans		0			0			0			0
Percentage of Total Loans		0.0000	%		0.0000	%		0.0000	%		0.0000	%
Total
Scheduled Principal Balance		26,248,171.81			17,476,300.53			15,220,251.01			58,944,723.35
Percentage of Total Pool Balance		3.6827	%		2.4520	%		2.1354	%		8.2701	%
Number of Loans		140			78			71			289
Percentage of Total Loans		3.6288	%		2.0218	%		1.8403	%		7.4909	%

Principal and Interest Advance Required and Received		5,083,610.32

Reports Available at www.sf.citidirect.com

Page 12 of 18

Distribution Date:

Determination Date:

06/25/2007

06/18/2007

HSI Asset Corporation Trust

Mortgage Pass-Through Certificates

Series 2007-OPT1

*Standard Prepayment and Default Information*
Payment Date	Wtd. Avg. Age (Months)	Current Collateral Balance	Scheduled Principal	Unscheduled Principal	Liquidation Principal	SMM	CPR	PSA	MDR	CDR	SDA
25-Jun-2007	8.50	712,745,688.07	307,980.97	13,291,376.61	0.00	1.831%	19.886%	1,169%	0.000%	0.000%	0%
25-May-2007	7.50	726,345,045.65	312,089.21	13,734,955.64	0.00	1.856%	20.132%	1,341%	0.000%	0.000%	0%
25-Apr-2007	6.50	740,392,090.50	313,535.10	11,443,825.98	0.00	1.522%	16.811%	1,293%	0.000%	0.000%	0%
26-Mar-2007	5.51	752,149,451.58	316,446.69	12,971,283.21	0.00	1.695%	18.550%	1,684%	0.000%	0.000%	0%
26-Feb-2007	4.51	765,437,181.48	319,501.64	12,319,157.91	0.00	1.584%	17.436%	1,933%	0.000%	0.000%	0%

SMM (Single Month Mortality) = Unscheduled Principal / (Beginning Balance - Scheduled Principal)		MDR (Monthly Default Rate) = Beginning Balance of Liquidated Asset / Total Beginning Balance
CPR (Constant Prepayment Rate) = 1 - ((1-SMM)^12)		CDR (Conditional Default Rate) = 1 - ((1-MDR)^12)
PSA (Public Securities Association) = CPR * (min(.2% * Age, 6%))		SDA (Standard Default Assumption) = CDR * (min(.2% * Age, 6%))

Reports Available at www.sf.citidirect.com

Page 13 of 18

Distribution Date:

Determination Date:

06/25/2007

06/18/2007

HSI Asset Corporation Trust

Mortgage Pass-Through Certificates

Series 2007-OPT1

*Credit Enhancement*

*GROUP TOTALS*

Required Overcollateralization Amount			14,783,440.98	2.0742	%
Prior Overcollateralization Amount			14,783,440.98
Overcollateralization Decrease due to Realized Losses			0.00
Overcollateralization Deficiency Amount	0.00
Excess Spread Available for Overcollateralization Increase	1,625,264.98
Overcollateralization Increase Amount			0.00
Excess Overcollateralization Amount	0.00
Principal Available for Overcollateralization Reduction	13,599,357.58
Overcollateralization Reduction Amount			0.00
Current Overcollateralization			14,783,440.98	2.0742	%

Senior Enhancement Percentage				22.9248	%
Are Stepdown Principal Distributions allowed this month?				No
(Has the Stepdown Date occured and are there no Trigger Events in effect?)
Has the Stepdown Date Occured?			No
(Has the Distribution Date in December 2009 passed or have the Senior Notes paid down to their target percentage?)
Senior Notes Credit Enhancement Percentage	21.0168	%
Senior Notes Credit Enhancement Target Percentage	42.0000	%
Is A Trigger Event in effect?			No
(Is a Delinquency Trigger Event in effect or is a Cumulative Loss Trigger Event in effect?)
Is A Delinquency Trigger Event in effect?			No
(Does the Delinquency Percentage equal or exceed the target percentage?)
Rolling Three Month Delinquency Rate	2.3409	%
Target Percentage	8.0074	%
Is A Cumulative Realized Loss Trigger Event in effect?			No
(Does the Cumulative Loss Percentage equal or exceed the target percentage?)
Cumulative Loss Percentage	0.0000	%
Target Percentage	8.5000	%

Reports Available at www.sf.citidirect.com

Page 14 of 18

Distribution Date:

Determination Date:

06/25/2007

06/18/2007

HSI Asset Corporation Trust

Mortgage Pass-Through Certificates

Series 2007-OPT1

*Waterfall Detail*
*DISTRIBUTIONS*	Amount Distributed			Remaining Available Funds

Group 1 Interest Remittance Funds					3,636,986.01
Group 1 Percentage of the Net Swap Payment owed to the Swap Counterparty		0.00			3,636,986.01
Class I-A Senior Interest Payment Interest		(1,887,013.98	)		1,749,972.03

Group 2 Interest Remittance Funds					1,399,417.01
Group 2 Percentage of the Net Swap Payment owed to the Swap Counterparty		0.00			1,399,417.01
Class II-A1, II-A2, II-A3, II-A4 Current and Carryforward Interest		(752,910.92	)		646,506.09

Group 1 & 2 Interest Remittance Funds					2,396,478.12
Group 1 & 2 Remaining Senior Interest Payments		0.00			2,396,478.12
Class M Interest Payment Amount		(771,213.14	)		1,625,264.98

Group 1 Principal Payment Amount					9,400,417.66
Group 1 Percentage of the Net Swap Payment owed to the Swap Counterparty		0.00			9,400,417.66
Group I-A, the Group 1 Principal Payment Amount		(9,400,417.66	)		0.00

Group 2 Principal Payment Amount					4,198,939.92
Group 2 Percentage of the Net Swap Payment owed to the Swap Counterparty		0.00			4,198,939.92
Group 2 Certificates, the Group 1 Principal Payment Amount		(4,198,939.92	)		0.00

Remaining Principal Payment Amount					0.00
Class M-1, the Class Principal Amount		0.00			0.00
Class M-2, the Class Principal Amount		0.00			0.00
Class M-3, the Class Principal Amount		0.00			0.00
Class M-4, the Class Principal Amount		0.00			0.00
Class M-5, the Class Principal Amount		0.00			0.00
Class M-6, the Class Principal Amount		0.00			0.00
Class M-7, the Class Principal Amount		0.00			0.00
Class M-8, the Class Principal Amount		0.00			0.00
Class M-9, the Class Principal Amount		0.00			0.00
Class M-10, the Class Principal Amount		0.00			0.00

Remaining Funds					1,625,264.98
Class A Certificates, any remaining Senior Interest Payment		0.00			1,625,264.98

Reports Available at www.sf.citidirect.com

Page 15 of 18

Distribution Date:

Determination Date:

06/25/2007

06/18/2007

HSI Asset Corporation Trust

Mortgage Pass-Through Certificates

Series 2007-OPT1



Class M Certificates, any Interest Payment Amount and Interest Carryforward Amount	0.00		1,625,264.98
Excess Reserve Fund Account, any Basis Risk Payment	(2,150.61	)	1,623,114.37
Credit Risk Manager, the Credit Risk Manager Fee	(8,474.03	)	1,614,640.34
Swap Counterparty, the Swap Termination Payment	0.00		1,614,640.34
Class X, the Class X Distributable Amount	(1,614,640.34	)	0.00
Class R, any remaining Amount	0.00		0.00

Reports Available at www.sf.citidirect.com

Page 16 of 18

Distribution Date:

Determination Date:

06/25/2007

06/18/2007

HSI Asset Corporation Trust

Mortgage Pass-Through Certificates

Series 2007-OPT1



Excess Reserve Fund
Beginning Balance	1,000.00
Deposits	2,150.61
Withdrawals	2,150.61
Ending Balance	1,000.00

Supplemental Interest Trust Fund
Beginning Balance	1,000.00
Deposits	228,726.12
Withdrawals	228,726.12
Ending Balance	1,000.00

Final Maturity Reserve Trust
Beginning Balance	0.00
Deposits	0.00
Withdrawals	0.00
Ending Balance	0.00

Current Libor	5.320000	%
Next Libor	5.320000	%

Reports Available at www.sf.citidirect.com

Page 17 of 18

Distribution Date:

Determination Date:

06/25/2007

06/18/2007

HSI Asset Corporation Trust

Mortgage Pass-Through Certificates

Series 2007-OPT1



Basis Risk Shortfall Amounts (Amounts include prior month's unpaid)
Class 1A Basis Risk Shortfall Amount			0.00
Class 2A1 Basis Risk Shortfall Amount			0.00
Class 2A2 Basis Risk Shortfall Amount			0.00
Class 2A3 Basis Risk Shortfall Amount			0.00
Class 2A4 Basis Risk Shortfall Amount			0.00
Class M-1 Basis Risk Shortfall Amount			0.00
Class M-2 Basis Risk Shortfall Amount			0.00
Class M-3 Basis Risk Shortfall Amount			0.00
Class M-4 Basis Risk Shortfall Amount			0.00
Class M-5 Basis Risk Shortfall Amount			0.00
Class M-6 Basis Risk Shortfall Amount			0.00
Class M-7 Basis Risk Shortfall Amount			0.00
Class M-8 Basis Risk Shortfall Amount			0.00
Class M-9 Basis Risk Shortfall Amount			0.00
Class M-10 Basis Risk Shortfall Amount			2,150.61

Unpaid Basis Risk Shortfall Amounts
Class 1A Unpaid Basis Risk Shortfall Amount			0.00
Class 2A1 Unpaid Basis Risk Shortfall Amount			0.00
Class 2A2 Unpaid Basis Risk Shortfall Amount			0.00
Class 2A3 Unpaid Basis Risk Shortfall Amount			0.00
Class 2A4 Unpaid Basis Risk Shortfall Amount			0.00
Class M-1 Unpaid Basis Risk Shortfall Amount			0.00
Class M-2 Unpaid Basis Risk Shortfall Amount			0.00
Class M-3 Unpaid Basis Risk Shortfall Amount			0.00
Class M-4 Unpaid Basis Risk Shortfall Amount			0.00
Class M-5 Unpaid Basis Risk Shortfall Amount			0.00
Class M-6 Unpaid Basis Risk Shortfall Amount			0.00
Class M-7 Unpaid Basis Risk Shortfall Amount			0.00
Class M-8 Unpaid Basis Risk Shortfall Amount			0.00
Class M-9 Unpaid Basis Risk Shortfall Amount			0.00
Class M-10 Unpaid Basis Risk Shortfall Amount			0.00

Net Derivative Payment to the Supplemental Interest Trust Pursuant to Sec.4.02			228,726.12
Net Derivative Payment to the Derivative Counterparty Pursuant to Sec.4.02			0.00
Swap or Cap Termination Payment to the Supplemental Interest Trust Pursuant to Sec.4.02			0.00
Swap or Cap Termination Payment to the Swap Counterparty Pursuant to Sec.4.02			0.00

Reports Available at www.sf.citidirect.com

Page 18 of 18

HSI ASSET SECURITIZATION CORP TRUST 2007-OPT1 10-D