ETON · Eton Pharmaceuticals, Inc.

Track ETON — free

$58.86 +18.06 (+44.26%) At close · Aug 14

Market Cap

$1.68B

28.58M

Options Chain

Underlying $58.86 · at close Aug 14, 2026 Options Calculator

Positioning

Aug 21, 2026 · 4 days to expiry · 38 contracts · mixed snapshot sessions · Feb 26, 2026–Aug 14, 2026; 4 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 21 4d Sep 18 32d Nov 20 95d Feb 19 186d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
4	4	1031.6%	1	$25.60		—	—	—	—	0
Call · $2.5 In the money Snapshot session Jun 9, 2026 Last $25.60 Breakeven $28.10 Implied vol 1031.6% Delta 1 ≈100% ITM Gamma 0 Theta -0.01 Vega 0 Open interest 4 Model this call Put · $2.5 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	2	1235%	0.994	$13.34		—	—	—	—	0
Call · $5 In the money Snapshot session Mar 12, 2026 Last $13.34 Breakeven $18.34 Implied vol 1235% Delta 0.994 ≈99% ITM Gamma 0 Theta -0.156 Vega 0.002 Open interest 0 Model this call Put · $5 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	1021.2%	0.992	—		—	-0.011	1105.6%	—	0
Call · $7.5 In the money Snapshot session Unknown Last — Breakeven — Implied vol 1021.2% Delta 0.992 ≈99% ITM Gamma 0 Theta -0.163 Vega 0.002 Open interest 0 Model this call Put · $7.5 Snapshot session Unknown Last — Breakeven — Implied vol 1105.6% Delta -0.011 ≈1% ITM Gamma 0 Theta -0.227 Vega 0.002 Open interest 0 Model this put
1	5	552.2%	1	$26.90		$0.75	-0.013	945.8%	1	1
Call · $10 In the money Snapshot session Jul 2, 2026 Last $26.90 Breakeven $36.90 Implied vol 552.2% Delta 1 ≈100% ITM Gamma 0 Theta -0.008 Vega 0 Open interest 1 Model this call Put · $10 Snapshot session Feb 26, 2026 Last $0.75 Breakeven $9.25 Implied vol 945.8% Delta -0.013 ≈1% ITM Gamma 0.001 Theta -0.232 Vega 0.002 Open interest 1 Model this put
2	1	476.3%	1	$11.62		$1.35	-0.015	826.5%	1	1
Call · $12.5 In the money Snapshot session Apr 21, 2026 Last $11.62 Breakeven $24.12 Implied vol 476.3% Delta 1 ≈100% ITM Gamma 0 Theta -0.007 Vega 0 Open interest 2 Model this call Put · $12.5 Snapshot session Feb 26, 2026 Last $1.35 Breakeven $11.15 Implied vol 826.5% Delta -0.015 ≈2% ITM Gamma 0.001 Theta -0.233 Vega 0.003 Open interest 1 Model this put
75	1	407.6%	1	$28.00		$0.35	-0.018	731.5%	1	958
Call · $15 In the money Snapshot session Jul 24, 2026 Last $28.00 Breakeven $43.00 Implied vol 407.6% Delta 1 ≈100% ITM Gamma 0 Theta -0.006 Vega 0 Open interest 75 Model this call Put · $15 Snapshot session Jun 4, 2026 Last $0.35 Breakeven $14.65 Implied vol 731.5% Delta -0.018 ≈2% ITM Gamma 0.001 Theta -0.234 Vega 0.003 Open interest 958 Model this put
5	4	349.9%	1	$17.83		$0.10	-0.02	652.7%	50	52
Call · $17.5 In the money Snapshot session Jun 26, 2026 Last $17.83 Breakeven $35.33 Implied vol 349.9% Delta 1 ≈100% ITM Gamma 0 Theta -0.005 Vega 0 Open interest 5 Model this call Put · $17.5 Snapshot session Jul 14, 2026 Last $0.10 Breakeven $17.40 Implied vol 652.7% Delta -0.02 ≈2% ITM Gamma 0.001 Theta -0.233 Vega 0.003 Open interest 52 Model this put
8	5	—	—	$10.48		$0.10	-0.059	940.4%	10	20
Call · $20 In the money Snapshot session May 1, 2026 Last $10.48 Breakeven $30.48 Implied vol — Delta — Gamma — Theta — Vega — Open interest 8 Model this call Put · $20 Snapshot session Jul 20, 2026 Last $0.10 Breakeven $19.90 Implied vol 940.4% Delta -0.059 ≈6% ITM Gamma 0.002 Theta -0.816 Vega 0.009 Open interest 20 Model this put
98	4	—	—	$35.85		$0.45	-0.026	526.7%	1	3
Call · $22.5 In the money Snapshot session Aug 14, 2026 Last $35.85 Breakeven $58.35 Implied vol — Delta — Gamma — Theta — Vega — Open interest 98 Model this call Put · $22.5 Snapshot session Jul 6, 2026 Last $0.45 Breakeven $22.05 Implied vol 526.7% Delta -0.026 ≈3% ITM Gamma 0.002 Theta -0.229 Vega 0.004 Open interest 3 Model this put
28	1	—	—	$21.01		$0.70	-0.029	474.6%	1	19
Call · $25 In the money Snapshot session Jul 31, 2026 Last $21.01 Breakeven $46.01 Implied vol — Delta — Gamma — Theta — Vega — Open interest 28 Model this call Put · $25 Snapshot session Jul 6, 2026 Last $0.70 Breakeven $24.30 Implied vol 474.6% Delta -0.029 ≈3% ITM Gamma 0.002 Theta -0.227 Vega 0.004 Open interest 19 Model this put
52	50	—	—	$28.20		$1.23	-0.041	407.1%	500	195
Call · $30 In the money Snapshot session Aug 14, 2026 Last $28.20 Breakeven $58.20 Implied vol — Delta — Gamma — Theta — Vega — Open interest 52 Model this call Put · $30 Snapshot session Jul 17, 2026 Last $1.23 Breakeven $28.77 Implied vol 407.1% Delta -0.041 ≈4% ITM Gamma 0.003 Theta -0.263 Vega 0.005 Open interest 195 Model this put
151	2	—	—	$21.54		$0.20	-0.044	311.1%	20	78
Call · $35 In the money Snapshot session Aug 14, 2026 Last $21.54 Breakeven $56.54 Implied vol — Delta — Gamma — Theta — Vega — Open interest 151 Model this call Put · $35 Snapshot session Aug 13, 2026 Last $0.20 Breakeven $34.80 Implied vol 311.1% Delta -0.044 ≈4% ITM Gamma 0.005 Theta -0.214 Vega 0.005 Open interest 78 Model this put
440	16	—	—	$19.50		$0.05	-0.137	401.5%	13	67
Call · $40 In the money Snapshot session Aug 14, 2026 Last $19.50 Breakeven $59.50 Implied vol — Delta — Gamma — Theta — Vega — Open interest 440 Model this call Put · $40 Snapshot session Aug 14, 2026 Last $0.05 Breakeven $39.95 Implied vol 401.5% Delta -0.137 ≈14% ITM Gamma 0.008 Theta -0.645 Vega 0.014 Open interest 67 Model this put
559	61	—	—	$12.80		$0.10	-0.049	156.6%	39	26
Call · $45 In the money Snapshot session Aug 14, 2026 Last $12.80 Breakeven $57.80 Implied vol — Delta — Gamma — Theta — Vega — Open interest 559 Model this call Put · $45 Snapshot session Aug 14, 2026 Last $0.10 Breakeven $44.90 Implied vol 156.6% Delta -0.049 ≈5% ITM Gamma 0.01 Theta -0.116 Vega 0.006 Open interest 26 Model this put
725	66	74.6%	0.98	$7.91		$0.26	-0.131	144.1%	143	84
Call · $50 In the money Snapshot session Aug 14, 2026 Last $7.91 Breakeven $57.91 Implied vol 74.6% Delta 0.98 ≈98% ITM Gamma 0.01 Theta -0.031 Vega 0.003 Open interest 725 Model this call Put · $50 Snapshot session Aug 14, 2026 Last $0.26 Breakeven $49.74 Implied vol 144.1% Delta -0.131 ≈13% ITM Gamma 0.023 Theta -0.225 Vega 0.016 Open interest 84 Model this put
760	737	93.6%	0.766	$4.72		$1.10	-0.268	112.6%	206	187
Call · $55 In the money Snapshot session Aug 14, 2026 Last $4.72 Breakeven $59.72 Implied vol 93.6% Delta 0.766 ≈77% ITM Gamma 0.051 Theta -0.216 Vega 0.022 Open interest 760 Model this call Put · $55 Snapshot session Aug 14, 2026 Last $1.10 Breakeven $53.90 Implied vol 112.6% Delta -0.268 ≈27% ITM Gamma 0.045 Theta -0.271 Vega 0.022 Open interest 187 Model this put
Underlying $58.86
18	49	86.1%	0.447	$1.90		$4.25	-0.514	138.5%	7	7
Call · $60 Snapshot session Aug 14, 2026 Last $1.90 Breakeven $61.90 Implied vol 86.1% Delta 0.447 ≈45% ITM Gamma 0.071 Theta -0.252 Vega 0.026 Open interest 18 Model this call Put · $60 In the money Snapshot session Aug 14, 2026 Last $4.25 Breakeven $55.75 Implied vol 138.5% Delta -0.514 ≈51% ITM Gamma 0.045 Theta -0.404 Vega 0.026 Open interest 7 Model this put
59	88	84.9%	0.159	$0.60		$9.00	-0.813	93.9%	7	1
Call · $65 Snapshot session Aug 14, 2026 Last $0.60 Breakeven $65.60 Implied vol 84.9% Delta 0.159 ≈16% ITM Gamma 0.044 Theta -0.153 Vega 0.018 Open interest 59 Model this call Put · $65 In the money Snapshot session Aug 14, 2026 Last $9.00 Breakeven $56.00 Implied vol 93.9% Delta -0.813 ≈81% ITM Gamma 0.044 Theta -0.181 Vega 0.018 Open interest 1 Model this put
12	13	107.9%	0.081	$0.25		$13.65	-0.907	112.9%	6	0
Call · $70 Snapshot session Aug 14, 2026 Last $0.25 Breakeven $70.25 Implied vol 107.9% Delta 0.081 ≈8% ITM Gamma 0.022 Theta -0.12 Vega 0.013 Open interest 12 Model this call Put · $70 In the money Snapshot session Aug 14, 2026 Last $13.65 Breakeven $56.35 Implied vol 112.9% Delta -0.907 ≈91% ITM Gamma 0.023 Theta -0.133 Vega 0.013 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 · Feb 26, 2026–Aug 14, 2026; 4 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 1710340 CUSIP 29772L108 13F (30d) 156 filings 154 filers Visit website Investor relations