COMM 2017-COR2 Mortgage Trust

Tranches, pool and monthly delinquency indicator for COMM 2017-COR2 Mortgage Trust.

Data as of loan data through September 2026; ratings as held in the dataset at build

Current pool balance: $814.1M (September 2026)
Original pool balance: $916.5M
Loans at issuance: 78
Closing date: 2017-09-28
Weighted average coupon at issuance: 4.61%
Weighted average LTV at issuance: 59.2%
30+ delinquent (latest): 3.26%
Realized stress score: 53.6
Net rating change since issuance: +0.05 notches

Tranches

Class	Original balance	Credit support (computed)	Coupon	CUSIP	Fitch	KBRA	S&P	Moody's	DBRS
A-1	$23.9M	97.39%	2.111% fixed	12595EAA3	PIF	WR	not yet reported	WR	not yet reported
A-2	$255.0M	69.57%	3.239% fixed	12595EAC9	AAA	AAA	not yet reported	Aaa	not yet reported
A-3	$315.6M	35.13%	3.510% fixed	12595EAD7	AAA	AAA	not yet reported	Aaa	not yet reported
A-M	$61.9M	28.38%	3.803% fixed	12595EAF2	AAA	AAA	not yet reported	Aa3	not yet reported
A-SB	$47.0M	23.25%	3.317% fixed	12595EAB1	AAA	AAA	not yet reported	Aaa	not yet reported
B	$43.5M	18.50%	4.206% floating (WAC)	12595EAG0	AA-	AA	not yet reported	not yet reported	not yet reported
C	$44.7M	13.63%	4.563% floating (WAC)	12595EAH8	A-	A	not yet reported	not yet reported	not yet reported
D	$28.6M	10.50%	3.000% fixed	12595EAN5	BBB	BBB+	not yet reported	not yet reported	not yet reported
E-RR	$22.9M	8.00%	4.563% floating (WAC)	12595EAQ8	BB	BBB-	not yet reported	not yet reported	not yet reported
F-RR	$20.6M	5.75%	4.563% floating (WAC)	12595EAS4	B	BB-	not yet reported	not yet reported	not yet reported
G-RR	$12.6M	4.38%	4.563% floating (WAC)	12595EAU9	CCC	B-	not yet reported	not yet reported	not yet reported
H-RR	$40.1M	0.00%	4.563% floating (WAC)	12595EAW5	not yet reported	not yet reported	not yet reported	not yet reported	not yet reported
R	not yet reported	not yet reported	not yet reported	12595EAY1	not yet reported	not yet reported	not yet reported	not yet reported	not yet reported
X-A	$703.4M	Interest only	1.186% floating	12595EAE5	AAA	AAA	not yet reported	Aa1	not yet reported
X-B	$43.5M	Interest only	0.357% floating	12595EAJ4	AA-	AAA	not yet reported	not yet reported	not yet reported
X-D	$28.6M	Interest only	1.563% floating	12595EAL9	BBB	BBB+	not yet reported	not yet reported	not yet reported

Credit support is computed from the class stack order in the prospectus: the share of the deal's principal balance in classes junior to the class. Interest-only classes carry a notional balance and no principal support figure. Ratings are the latest held in the dataset for each class and agency; NR means the agency shows the class as not rated, WR that the rating was withdrawn, PIF that the class has been paid in full. Any other status value is shown exactly as the agency reports it. A + after a CUSIP marks a class with companion CUSIPs in the dataset.

Pool at issuance

Loans	78
Original loan balance	$1.19B
Weighted average coupon	4.61%
Weighted average LTV	59.2%
Median loan LTV	64.6%
Full-term interest only (share of balance)	35.8%
Balloon loans (share of balance)	100.0%
Largest loan (share of balance)	5.9%
Five largest loans (share of balance)	25.2%
Occupancy at issuance (weighted average)	91.7%

Realized outcomes

Months reported	109
Peak 30+ delinquency	14.39% (September 2023)
Ever severe (share of original balance)	3.15%
Ever modified (share of original balance)	19.29%
Past scheduled maturity (share of original balance)	0.00%
Non-performing matured (share of original balance)	67.35%
Maximum servicer advances (share of balance)	0.22%
Median DSCR, first year	not yet reported
Median DSCR, latest	1.61
Realized stress score	53.6

Property types

Property type	Original balance	Share of pool
Lodging	$255.1M	21.4%
Office	$242.5M	20.3%
SE	$198.2M	16.6%
Retail	$182.6M	15.3%
Mixed use	$95.5M	8.0%
Multifamily	$91.5M	7.7%
Self storage	$43.8M	3.7%
HC	$24.3M	2.0%
Industrial	$21.5M	1.8%
Warehouse	$1.8M	0.1%

Property type is reported for 96.8% of the pool balance; shares are of the full pool.

Largest loans

Property	Location	Original balance	Share of pool	Coupon	Originated
101 Ludlow	New York, NY	$71.0M	5.9%	4.41%	2016
Embassy Suites Columbus, Dublin	Dublin, OH	$65.0M	5.4%	4.72%	2017
["Defeased", "Defeased", "Defeased", "Defeased"]	not yet reported	$57.7M	4.8%	4.48%	2017
CHG Building	Midvale, UT	$57.0M	4.8%	4.72%	2017
Mall Of Louisiana	Baton Rouge, LA	$50.0M	4.2%	3.98%	2017

Delinquency and stress indicator

▬ 30+ days delinquent · ▬ Distressed (90+, foreclosure, REO, non-performing matured)

Monthly shares of the deal's reported balance, from the deal indicator series in the dataset. Months in which fewer than half of the reported loans carry a delinquency status code are not plotted.

Ratings

Classes with a CUSIP	16 of 16
Classes with a current rating in the dataset	14 of 16
Net rating change since issuance	+0.05 notches (balance-weighted)
Delinquency threshold crossed	June 2020
First downgrade	June 2024

Sources: SEC Form ABS-EE asset-level reports, Form 10-D distribution reports and the deal prospectus; rating histories published under SEC Rule 17g-7(b) and agency releases. Definitions are in the methods note on the market page.