UDR · UDR, Inc.

Track UDR — free Ask ALVIS about UDR

$39.72 +0.72 (+1.85%) At close · Jul 29

Market Cap

$12.67B

324.92M

Options Chain

15-min delayed Underlying $39.72 · at close Jul 29, 2026 Options Calculator

Positioning

Aug 21, 2026 · 22 days to expiry · 28 contracts

Put / call OI

0.01

Call-heavy positioning

Open interest

5,708

contracts outstanding

Volume

traded today

Max pain

$40.00

$0.28 above spot

ATM implied vol

34%

market's expected move

Open interest by strike

Calls Puts

22.5

27.5

32.5

37.5

42.5

47.5

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 22d Sep 18 50d Oct 16 78d Nov 20 113d Jan 15 169d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	132.5%	0.99	—		$0.20	—	—	1	5
Call · $20 In the money Last — Breakeven — Implied vol 132.5% Delta 0.99 ≈99% ITM Gamma 0.003 Theta -0.006 Vega 0.003 Open interest 0 Model this call Put · $20 Last $0.20 Breakeven $19.80 Implied vol — Delta — Gamma — Theta — Vega — Open interest 5 Model this put
0	—	111.4%	0.988	—		—	—	—	—	0
Call · $22.5 In the money Last — Breakeven — Implied vol 111.4% Delta 0.988 ≈99% ITM Gamma 0.004 Theta -0.006 Vega 0.003 Open interest 0 Model this call Put · $22.5 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $25 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $25 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $27.5 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $27.5 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $30 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $30 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		$0.05	-0.176	99.8%	5	5
Call · $32.5 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $32.5 Last $0.05 Breakeven $32.45 Implied vol 99.8% Delta -0.176 ≈18% ITM Gamma 0.026 Theta -0.057 Vega 0.024 Open interest 5 Model this put
0	—	—	—	—		—	-0.211	71.1%	—	0
Call · $35 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $35 Last — Breakeven — Implied vol 71.1% Delta -0.211 ≈21% ITM Gamma 0.042 Theta -0.046 Vega 0.032 Open interest 0 Model this put
0	—	—	—	—		$0.30	-0.193	27.1%	10	8
Call · $37.5 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $37.5 Last $0.30 Breakeven $37.20 Implied vol 27.1% Delta -0.193 ≈19% ITM Gamma 0.102 Theta -0.017 Vega 0.026 Open interest 8 Model this put
Underlying $39.72
2.8k	22	21.9%	0.453	$0.68		$1.45	-0.503	46.1%	1	8
Call · $40 Last $0.68 Breakeven $40.68 Implied vol 21.9% Delta 0.453 ≈45% ITM Gamma 0.184 Theta -0.018 Vega 0.039 Open interest 2.8k Model this call Put · $40 In the money Last $1.45 Breakeven $38.55 Implied vol 46.1% Delta -0.503 ≈50% ITM Gamma 0.088 Theta -0.041 Vega 0.039 Open interest 8 Model this put
2.8k	6	30.7%	0.196	$0.14		$2.95	-0.806	30.1%	20	11
Call · $42.5 Last $0.14 Breakeven $42.64 Implied vol 30.7% Delta 0.196 ≈20% ITM Gamma 0.091 Theta -0.018 Vega 0.027 Open interest 2.8k Model this call Put · $42.5 In the money Last $2.95 Breakeven $39.55 Implied vol 30.1% Delta -0.806 ≈81% ITM Gamma 0.091 Theta -0.019 Vega 0.027 Open interest 11 Model this put
1	1	—	—	$0.05		—	-0.876	41.3%	—	0
Call · $45 Last $0.05 Breakeven $45.05 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this call Put · $45 In the money Last — Breakeven — Implied vol 41.3% Delta -0.876 ≈88% ITM Gamma 0.049 Theta -0.019 Vega 0.018 Open interest 0 Model this put
0	—	—	—	—		$8.19	-0.897	53.5%	8	2
Call · $47.5 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $47.5 In the money Last $8.19 Breakeven $39.31 Implied vol 53.5% Delta -0.897 ≈90% ITM Gamma 0.033 Theta -0.021 Vega 0.019 Open interest 2 Model this put
0	—	—	—	—		—	-0.921	62.2%	—	0
Call · $50 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $50 In the money Last — Breakeven — Implied vol 62.2% Delta -0.921 ≈92% ITM Gamma 0.023 Theta -0.02 Vega 0.011 Open interest 0 Model this put
0	—	—	—	—		$15.69	-0.934	80.5%	2	1
Call · $55 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $55 In the money Last $15.69 Breakeven $39.31 Implied vol 80.5% Delta -0.934 ≈93% ITM Gamma 0.016 Theta -0.022 Vega 0.012 Open interest 1 Model this put

About this data

Greeks, implied volatility, open interest and the last price come from the latest daily snapshot and are 15-minute delayed. Bid and ask are not included on this plan.

In-the-money strikes are tinted, deepening toward the money, and the bar beside each open-interest figure scales to the heaviest strike shown. Max pain is the listed strike where the most open interest would expire worthless — a positioning reference, not a forecast.

Key facts CIK 74208 CUSIP 902653104 13F (30d) 163 filings 137 filers Visit website Investor relations