AMG · Affiliated Managers Group, Inc.

Track AMG — free

$374.37 +7.27 (+1.98%) At close · Aug 14

Market Cap

$9.49B

25.86M

Options Chain

Underlying $374.37 · at close Aug 14, 2026 Options Calculator

Positioning

Aug 21, 2026 · 6 days to expiry · 58 contracts · mixed snapshot sessions · Jul 21, 2026–Aug 14, 2026; 23 unknown

Put / call OI

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dated and unknown snapshot sessions

Open interest

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dated and unknown snapshot sessions

Volume

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dated and unknown snapshot sessions

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 6d Sep 18 34d Nov 20 97d Dec 18 125d Mar 19 216d Dec 17 489d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	—	—	—		$0.25	-0.012	193.9%	1	1
Call · $220 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $220 Snapshot session Jul 21, 2026 Last $0.25 Breakeven $219.75 Implied vol 193.9% Delta -0.012 ≈1% ITM Gamma 0 Theta -0.233 Vega 0.019 Open interest 1 Model this put
0	—	—	—	—		$0.24	-0.015	184.3%	1	1
Call · $230 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $230 Snapshot session Jul 31, 2026 Last $0.24 Breakeven $229.76 Implied vol 184.3% Delta -0.015 ≈1% ITM Gamma 0 Theta -0.271 Vega 0.019 Open interest 1 Model this put
0	—	—	—	—		—	-0.014	164.9%	—	0
Call · $240 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $240 Snapshot session Unknown Last — Breakeven — Implied vol 164.9% Delta -0.014 ≈1% ITM Gamma 0 Theta -0.226 Vega 0.02 Open interest 0 Model this put
0	—	—	—	—		—	-0.016	153.8%	—	0
Call · $250 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $250 Snapshot session Unknown Last — Breakeven — Implied vol 153.8% Delta -0.016 ≈2% ITM Gamma 0.001 Theta -0.244 Vega 0.02 Open interest 0 Model this put
0	—	—	—	—		$2.00	-0.016	138.3%	50	50
Call · $260 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $260 Snapshot session Jul 21, 2026 Last $2.00 Breakeven $258.00 Implied vol 138.3% Delta -0.016 ≈2% ITM Gamma 0.001 Theta -0.219 Vega 0.02 Open interest 50 Model this put
1	1	—	—	$71.40		—	-0.018	125.7%	—	0
Call · $270 In the money Snapshot session Jul 21, 2026 Last $71.40 Breakeven $341.40 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this call Put · $270 Snapshot session Unknown Last — Breakeven — Implied vol 125.7% Delta -0.018 ≈2% ITM Gamma 0.001 Theta -0.216 Vega 0.021 Open interest 0 Model this put
0	—	—	—	—		$2.22	-0.02	113.6%	1	1
Call · $280 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $280 Snapshot session Jul 22, 2026 Last $2.22 Breakeven $277.78 Implied vol 113.6% Delta -0.02 ≈2% ITM Gamma 0.001 Theta -0.212 Vega 0.021 Open interest 1 Model this put
2	1	—	—	$89.40		$3.24	-0.019	98.5%	1	1
Call · $290 In the money Snapshot session Aug 3, 2026 Last $89.40 Breakeven $379.40 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 Model this call Put · $290 Snapshot session Jul 22, 2026 Last $3.24 Breakeven $286.76 Implied vol 98.5% Delta -0.019 ≈2% ITM Gamma 0.001 Theta -0.177 Vega 0.022 Open interest 1 Model this put
0	—	—	—	—		$5.50	-0.024	90.8%	3	28
Call · $300 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $300 Snapshot session Jul 23, 2026 Last $5.50 Breakeven $294.50 Implied vol 90.8% Delta -0.024 ≈2% ITM Gamma 0.001 Theta -0.205 Vega 0.022 Open interest 28 Model this put
0	—	—	—	—		$6.70	-0.032	82%	1	1
Call · $310 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $310 Snapshot session Jul 22, 2026 Last $6.70 Breakeven $303.30 Implied vol 82% Delta -0.032 ≈3% ITM Gamma 0.002 Theta -0.231 Vega 0.045 Open interest 1 Model this put
0	—	48.2%	0.995	—		$8.90	-0.034	68.9%	60	125
Call · $320 In the money Snapshot session Unknown Last — Breakeven — Implied vol 48.2% Delta 0.995 ≈100% ITM Gamma 0.001 Theta -0.057 Vega 0.01 Open interest 0 Model this call Put · $320 Snapshot session Jul 21, 2026 Last $8.90 Breakeven $311.10 Implied vol 68.9% Delta -0.034 ≈3% ITM Gamma 0.002 Theta -0.205 Vega 0.045 Open interest 125 Model this put
99	1	48.5%	0.98	$51.92		$13.20	-0.054	62.7%	113	83
Call · $330 In the money Snapshot session Aug 3, 2026 Last $51.92 Breakeven $381.92 Implied vol 48.5% Delta 0.98 ≈98% ITM Gamma 0.002 Theta -0.123 Vega 0.023 Open interest 99 Model this call Put · $330 Snapshot session Jul 21, 2026 Last $13.20 Breakeven $316.80 Implied vol 62.7% Delta -0.054 ≈5% ITM Gamma 0.004 Theta -0.271 Vega 0.046 Open interest 83 Model this put
0	—	42.8%	0.963	—		$9.00	-0.118	66%	100	237
Call · $340 In the money Snapshot session Unknown Last — Breakeven — Implied vol 42.8% Delta 0.963 ≈96% ITM Gamma 0.004 Theta -0.17 Vega 0.046 Open interest 0 Model this call Put · $340 Snapshot session Jul 29, 2026 Last $9.00 Breakeven $331.00 Implied vol 66% Delta -0.118 ≈12% ITM Gamma 0.006 Theta -0.519 Vega 0.081 Open interest 237 Model this put
1	1	43.8%	0.89	$34.92		$1.40	-0.115	45.1%	1	112
Call · $350 In the money Snapshot session Aug 3, 2026 Last $34.92 Breakeven $384.92 Implied vol 43.8% Delta 0.89 ≈89% ITM Gamma 0.009 Theta -0.358 Vega 0.082 Open interest 1 Model this call Put · $350 Snapshot session Aug 14, 2026 Last $1.40 Breakeven $348.60 Implied vol 45.1% Delta -0.115 ≈12% ITM Gamma 0.009 Theta -0.348 Vega 0.082 Open interest 112 Model this put
52	1	41.3%	0.782	$14.87		$7.80	-0.234	44.2%	1	4
Call · $360 In the money Snapshot session Aug 14, 2026 Last $14.87 Breakeven $374.87 Implied vol 41.3% Delta 0.782 ≈78% ITM Gamma 0.015 Theta -0.519 Vega 0.164 Open interest 52 Model this call Put · $360 Snapshot session Aug 10, 2026 Last $7.80 Breakeven $352.20 Implied vol 44.2% Delta -0.234 ≈23% ITM Gamma 0.015 Theta -0.536 Vega 0.164 Open interest 4 Model this put
9	2	38.3%	0.608	$8.60		$12.36	-0.396	39.5%	1	2
Call · $370 In the money Snapshot session Aug 14, 2026 Last $8.60 Breakeven $378.60 Implied vol 38.3% Delta 0.608 ≈61% ITM Gamma 0.021 Theta -0.608 Vega 0.191 Open interest 9 Model this call Put · $370 Snapshot session Aug 10, 2026 Last $12.36 Breakeven $357.64 Implied vol 39.5% Delta -0.396 ≈40% ITM Gamma 0.02 Theta -0.592 Vega 0.191 Open interest 2 Model this put
Underlying $374.37
5	2	35.7%	0.386	$7.30		$10.58	-0.606	38.2%	1	1
Call · $380 Snapshot session Aug 10, 2026 Last $7.30 Breakeven $387.30 Implied vol 35.7% Delta 0.386 ≈39% ITM Gamma 0.022 Theta -0.563 Vega 0.195 Open interest 5 Model this call Put · $380 In the money Snapshot session Aug 4, 2026 Last $10.58 Breakeven $369.42 Implied vol 38.2% Delta -0.606 ≈61% ITM Gamma 0.021 Theta -0.569 Vega 0.194 Open interest 1 Model this put
221	1	38.6%	0.218	$12.87		—	-0.785	38.7%	—	0
Call · $390 Snapshot session Aug 4, 2026 Last $12.87 Breakeven $402.87 Implied vol 38.6% Delta 0.218 ≈22% ITM Gamma 0.016 Theta -0.462 Vega 0.133 Open interest 221 Model this call Put · $390 In the money Snapshot session Unknown Last — Breakeven — Implied vol 38.7% Delta -0.785 ≈78% ITM Gamma 0.016 Theta -0.429 Vega 0.132 Open interest 0 Model this put
25	1	48.5%	0.154	$6.00		—	-0.878	43.3%	—	0
Call · $400 Snapshot session Jul 29, 2026 Last $6.00 Breakeven $406.00 Implied vol 48.5% Delta 0.154 ≈15% ITM Gamma 0.01 Theta -0.465 Vega 0.134 Open interest 25 Model this call Put · $400 In the money Snapshot session Unknown Last — Breakeven — Implied vol 43.3% Delta -0.878 ≈88% ITM Gamma 0.01 Theta -0.326 Vega 0.089 Open interest 0 Model this put
9	5	42.7%	0.054	$4.40		$55.10	-0.928	48.3%	1	1
Call · $410 Snapshot session Jul 28, 2026 Last $4.40 Breakeven $414.40 Implied vol 42.7% Delta 0.054 ≈5% ITM Gamma 0.005 Theta -0.187 Vega 0.053 Open interest 9 Model this call Put · $410 In the money Snapshot session Jul 21, 2026 Last $55.10 Breakeven $354.90 Implied vol 48.3% Delta -0.928 ≈93% ITM Gamma 0.006 Theta -0.242 Vega 0.084 Open interest 1 Model this put
2	1	50.7%	0.042	$3.10		$68.00	-0.938	57.3%	2	0
Call · $420 Snapshot session Jul 22, 2026 Last $3.10 Breakeven $423.10 Implied vol 50.7% Delta 0.042 ≈4% ITM Gamma 0.004 Theta -0.183 Vega 0.053 Open interest 2 Model this call Put · $420 In the money Snapshot session Jul 21, 2026 Last $68.00 Breakeven $352.00 Implied vol 57.3% Delta -0.938 ≈94% ITM Gamma 0.005 Theta -0.255 Vega 0.052 Open interest 0 Model this put
3	1	62.1%	0.046	$1.10		$62.50	-0.945	66%	3	0
Call · $430 Snapshot session Jul 31, 2026 Last $1.10 Breakeven $431.10 Implied vol 62.1% Delta 0.046 ≈5% ITM Gamma 0.003 Theta -0.24 Vega 0.054 Open interest 3 Model this call Put · $430 In the money Snapshot session Jul 31, 2026 Last $62.50 Breakeven $367.50 Implied vol 66% Delta -0.945 ≈95% ITM Gamma 0.004 Theta -0.266 Vega 0.052 Open interest 0 Model this put
0	—	70.6%	0.042	—		$101.40	-0.953	73.5%	1	0
Call · $440 Snapshot session Unknown Last — Breakeven — Implied vol 70.6% Delta 0.042 ≈4% ITM Gamma 0.003 Theta -0.251 Vega 0.054 Open interest 0 Model this call Put · $440 In the money Snapshot session Jul 21, 2026 Last $101.40 Breakeven $338.60 Implied vol 73.5% Delta -0.953 ≈95% ITM Gamma 0.003 Theta -0.26 Vega 0.052 Open interest 0 Model this put
0	—	77.9%	0.036	—		$111.70	-0.952	83.6%	1	0
Call · $450 Snapshot session Unknown Last — Breakeven — Implied vol 77.9% Delta 0.036 ≈4% ITM Gamma 0.002 Theta -0.246 Vega 0.055 Open interest 0 Model this call Put · $450 In the money Snapshot session Jul 21, 2026 Last $111.70 Breakeven $338.30 Implied vol 83.6% Delta -0.952 ≈95% ITM Gamma 0.003 Theta -0.303 Vega 0.053 Open interest 0 Model this put
0	—	81.6%	0.028	—		$121.00	-0.972	83%	1	0
Call · $460 Snapshot session Unknown Last — Breakeven — Implied vol 81.6% Delta 0.028 ≈3% ITM Gamma 0.002 Theta -0.21 Vega 0.028 Open interest 0 Model this call Put · $460 In the money Snapshot session Jul 21, 2026 Last $121.00 Breakeven $339.00 Implied vol 83% Delta -0.972 ≈97% ITM Gamma 0.002 Theta -0.186 Vega 0.026 Open interest 0 Model this put
0	—	111.4%	0.066	—		—	-0.959	99.5%	—	0
Call · $470 Snapshot session Unknown Last — Breakeven — Implied vol 111.4% Delta 0.066 ≈7% ITM Gamma 0.002 Theta -0.568 Vega 0.056 Open interest 0 Model this call Put · $470 In the money Snapshot session Unknown Last — Breakeven — Implied vol 99.5% Delta -0.959 ≈96% ITM Gamma 0.002 Theta -0.324 Vega 0.054 Open interest 0 Model this put
0	—	118.5%	0.061	—		$124.20	-0.965	105.3%	4	0
Call · $480 Snapshot session Unknown Last — Breakeven — Implied vol 118.5% Delta 0.061 ≈6% ITM Gamma 0.002 Theta -0.571 Vega 0.056 Open interest 0 Model this call Put · $480 In the money Snapshot session Jul 21, 2026 Last $124.20 Breakeven $355.80 Implied vol 105.3% Delta -0.965 ≈96% ITM Gamma 0.002 Theta -0.301 Vega 0.051 Open interest 0 Model this put
0	—	101.5%	0.023	—		$151.40	-0.98	101.2%	6	0
Call · $490 Snapshot session Unknown Last — Breakeven — Implied vol 101.5% Delta 0.023 ≈2% ITM Gamma 0.001 Theta -0.221 Vega 0.029 Open interest 0 Model this call Put · $490 In the money Snapshot session Jul 21, 2026 Last $151.40 Breakeven $338.60 Implied vol 101.2% Delta -0.98 ≈98% ITM Gamma 0.001 Theta -0.175 Vega 0.026 Open interest 0 Model this put
0	—	107.9%	0.022	—		$149.20	-0.981	107.6%	2	0
Call · $500 Snapshot session Unknown Last — Breakeven — Implied vol 107.9% Delta 0.022 ≈2% ITM Gamma 0.001 Theta -0.225 Vega 0.029 Open interest 0 Model this call Put · $500 In the money Snapshot session Jul 21, 2026 Last $149.20 Breakeven $350.80 Implied vol 107.6% Delta -0.981 ≈98% ITM Gamma 0.001 Theta -0.178 Vega 0.026 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 21, 2026–Aug 14, 2026; 23 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. The 25 strikes around the money are shown by default — switch to "All 29" for the wings.

Key facts CIK 1004434 CUSIP 008252108 13F (30d) 531 filings 507 filers Visit website Investor relations