DNN · Denison Mines Corp.

Track DNN — free

$3.50 +0.36 (+11.46%) At close · Aug 21

Market Cap

$3.17B

905.14M

Options Chain

Underlying $3.50 · at close Aug 21, 2026 Options Calculator

Positioning

Aug 28, 2026 · 4 days to expiry · 26 contracts · mixed snapshot sessions · Jul 27, 2026–Aug 21, 2026; 9 unknown

Put / call OI

—

dated and unknown snapshot sessions

Open interest

—

dated and unknown snapshot sessions

Volume

—

dated and unknown snapshot sessions

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 28 4d Sep 4 11d Sep 11 18d Sep 18 25d Sep 25 32d Oct 2 39d Oct 16 53d Jan 15 144d Apr 16 235d Jan 21 515d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
199	1	—	—	$2.82		—	—	—	—	0
Call · $0.5 In the money Snapshot session Aug 14, 2026 Last $2.82 Breakeven $3.32 Implied vol — Delta — Gamma — Theta — Vega — Open interest 199 Model this call Put · $0.5 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
24	1	—	—	$2.30		$0.01	—	—	5	5
Call · $1 In the money Snapshot session Aug 10, 2026 Last $2.30 Breakeven $3.30 Implied vol — Delta — Gamma — Theta — Vega — Open interest 24 Model this call Put · $1 Snapshot session Aug 20, 2026 Last $0.01 Breakeven $0.99 Implied vol — Delta — Gamma — Theta — Vega — Open interest 5 Model this put
1	2	—	—	$1.50		$0.01	—	—	5	2
Call · $1.5 In the money Snapshot session Aug 4, 2026 Last $1.50 Breakeven $3.00 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this call Put · $1.5 Snapshot session Aug 21, 2026 Last $0.01 Breakeven $1.49 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $2 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $2 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
11	3	—	—	$0.30		$0.05	-0.132	309.8%	1	109
Call · $2.5 In the money Snapshot session Jul 29, 2026 Last $0.30 Breakeven $2.80 Implied vol — Delta — Gamma — Theta — Vega — Open interest 11 Model this call Put · $2.5 Snapshot session Aug 20, 2026 Last $0.05 Breakeven $2.45 Implied vol 309.8% Delta -0.132 ≈13% ITM Gamma 0.171 Theta -0.027 Vega 0.001 Open interest 109 Model this put
155	34	0.1%	1	$0.50		$0.04	-0.184	166.8%	1	93
Call · $3 In the money Snapshot session Aug 21, 2026 Last $0.50 Breakeven $3.50 Implied vol 0.1% Delta 1 ≈100% ITM Gamma 0 Theta 0 Vega 0 Open interest 155 Model this call Put · $3 Snapshot session Aug 21, 2026 Last $0.04 Breakeven $2.96 Implied vol 166.8% Delta -0.184 ≈18% ITM Gamma 0.399 Theta -0.019 Vega 0.001 Open interest 93 Model this put
Underlying $3.50
662	524	77.4%	0.52	$0.13		$0.12	-0.484	62.8%	1	18
Call · $3.5 Snapshot session Aug 21, 2026 Last $0.13 Breakeven $3.63 Implied vol 77.4% Delta 0.52 ≈52% ITM Gamma 1.302 Theta -0.013 Vega 0.002 Open interest 662 Model this call Put · $3.5 Snapshot session Aug 21, 2026 Last $0.12 Breakeven $3.38 Implied vol 62.8% Delta -0.484 ≈48% ITM Gamma 1.608 Theta -0.01 Vega 0.002 Open interest 18 Model this put
241	61	143.8%	0.236	$0.02		$0.55	-1	0.1%	13	1
Call · $4 Snapshot session Aug 21, 2026 Last $0.02 Breakeven $4.02 Implied vol 143.8% Delta 0.236 ≈24% ITM Gamma 0.535 Theta -0.019 Vega 0.001 Open interest 241 Model this call Put · $4 In the money Snapshot session Aug 21, 2026 Last $0.55 Breakeven $3.45 Implied vol 0.1% Delta -1 ≈100% ITM Gamma 0 Theta 0 Vega 0 Open interest 1 Model this put
0	—	—	—	—		$1.03	-1	0.1%	3	2
Call · $4.5 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $4.5 In the money Snapshot session Aug 21, 2026 Last $1.03 Breakeven $3.47 Implied vol 0.1% Delta -1 ≈100% ITM Gamma 0 Theta 0 Vega 0 Open interest 2 Model this put
43	43	—	—	$0.02		$1.55	—	—	1	25
Call · $5 Snapshot session Jul 27, 2026 Last $0.02 Breakeven $5.02 Implied vol — Delta — Gamma — Theta — Vega — Open interest 43 Model this call Put · $5 In the money Snapshot session Aug 21, 2026 Last $1.55 Breakeven $3.45 Implied vol — Delta — Gamma — Theta — Vega — Open interest 25 Model this put
0	—	—	—	—		$2.42	-0.862	307.9%	1	1
Call · $5.5 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $5.5 In the money Snapshot session Aug 18, 2026 Last $2.42 Breakeven $3.08 Implied vol 307.9% Delta -0.862 ≈86% ITM Gamma 0.177 Theta -0.028 Vega 0.001 Open interest 1 Model this put
0	—	—	—	—		—	-1	0.1%	—	0
Call · $6 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $6 In the money Snapshot session Unknown Last — Breakeven — Implied vol 0.1% Delta -1 ≈100% ITM Gamma 0 Theta 0 Vega 0 Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $6.5 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $6.5 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put

About this data

Each contract's last price, volume, greeks, implied volatility and open interest belongs to the snapshot session shown in its details; unknown means the provider omitted the timestamp. This chain has mixed snapshot sessions · Jul 27, 2026–Aug 21, 2026; 9 unknown. Cross-contract positioning totals are shown only when every returned row has the same known session. 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.

Key facts CIK 1063259 CUSIP 248356107 13F (30d) 245 filings 241 filers Visit website Investor relations