FNX · First Trust Mid Cap Core AlphaDEX Fund ETF

Alerts for FNX

$144.86 +0.18 (+0.12%) At close · Sep 4

Options Chain

Underlying $144.86 · at close Sep 4, 2026 Options Calculator

Positioning

Sep 18, 2026 · 13 days to expiry · 32 contracts · daily-bar sessions unknown

Put / call OI

—

open-interest date unavailable

Open interest

—

open-interest date unavailable

Volume

—

daily-bar sessions unknown

ATM implied vol

13.3%

market's expected move

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Sep 18 13d Oct 16 41d Jan 15 132d Apr 16 223d

Calls								Puts
OI	Vol	IV	Δ	Bid	Ask	Last	Strike	Last	Bid	Ask	Δ	IV	Vol	OI
—	—	20.4%	0.933	$6.60	$9.80	—		—	$0.00	$1.25	—	—	—	—
Call · $137 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.080 UTC Last — Breakeven — Implied vol 20.4% Delta 0.933 ≈93% ITM Gamma 0.023 Theta -0.041 Vega 0.036 Open interest — OI effective date — Model this call Put · $137 Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.052 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	21.7%	0.892	$5.70	$9.00	—		—	$0.00	$1.25	—	—	—	—
Call · $138 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.076 UTC Last — Breakeven — Implied vol 21.7% Delta 0.892 ≈89% ITM Gamma 0.031 Theta -0.055 Vega 0.051 Open interest — OI effective date — Model this call Put · $138 Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.040 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	19.4%	0.881	$4.80	$7.90	—		—	$0.00	$1.35	—	—	—	—
Call · $139 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.064 UTC Last — Breakeven — Implied vol 19.4% Delta 0.881 ≈88% ITM Gamma 0.038 Theta -0.053 Vega 0.054 Open interest — OI effective date — Model this call Put · $139 Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.017 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	19.4%	0.838	$3.90	$7.10	—		—	$0.00	$1.40	—	—	—	—
Call · $140 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.042 UTC Last — Breakeven — Implied vol 19.4% Delta 0.838 ≈84% ITM Gamma 0.046 Theta -0.062 Vega 0.067 Open interest — OI effective date — Model this call Put · $140 Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.000 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	16.8%	0.818	$3.00	$6.00	—		—	$0.00	$1.55	—	—	—	—
Call · $141 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.013 UTC Last — Breakeven — Implied vol 16.8% Delta 0.818 ≈82% ITM Gamma 0.058 Theta -0.058 Vega 0.072 Open interest — OI effective date — Model this call Put · $141 Daily-bar session Unknown Quote as of 2026-09-04 19:59:30.991 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	16.5%	0.757	$2.20	$5.20	—		—	$0.00	$1.70	—	—	—	—
Call · $142 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:30.993 UTC Last — Breakeven — Implied vol 16.5% Delta 0.757 ≈76% ITM Gamma 0.069 Theta -0.065 Vega 0.086 Open interest — OI effective date — Model this call Put · $142 Daily-bar session Unknown Quote as of 2026-09-04 19:59:30.989 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	13.7%	0.713	$1.65	$3.80	—		—	$0.00	$1.85	—	—	—	—
Call · $143 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:30.989 UTC Last — Breakeven — Implied vol 13.7% Delta 0.713 ≈71% ITM Gamma 0.091 Theta -0.059 Vega 0.093 Open interest — OI effective date — Model this call Put · $143 Daily-bar session Unknown Quote as of 2026-09-04 19:59:30.988 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	12.6%	0.624	$0.80	$3.10	—		—	$0.20	$2.15	-0.395	15.1%	—	—
Call · $144 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:30.987 UTC Last — Breakeven — Implied vol 12.6% Delta 0.624 ≈62% ITM Gamma 0.11 Theta -0.059 Vega 0.104 Open interest — OI effective date — Model this call Put · $144 Daily-bar session Unknown Quote as of 2026-09-04 19:59:30.986 UTC Last — Breakeven — Implied vol 15.1% Delta -0.395 ≈39% ITM Gamma 0.093 Theta -0.055 Vega 0.105 Open interest — OI effective date — Model this put
Underlying $144.86
—	—	12.4%	0.51	$0.35	$2.40	—		—	$0.50	$2.55	-0.49	14.2%	—	—
Call · $145 Daily-bar session Unknown Quote as of 2026-09-04 19:59:30.985 UTC Last — Breakeven — Implied vol 12.4% Delta 0.51 ≈51% ITM Gamma 0.118 Theta -0.059 Vega 0.109 Open interest — OI effective date — Model this call Put · $145 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:30.985 UTC Last — Breakeven — Implied vol 14.2% Delta -0.49 ≈49% ITM Gamma 0.103 Theta -0.052 Vega 0.109 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$1.95	—		—	$0.95	$3.10	-0.595	13.7%	—	—
Call · $146 Daily-bar session Unknown Quote as of 2026-09-04 19:59:30.987 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $146 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:30.987 UTC Last — Breakeven — Implied vol 13.7% Delta -0.595 ≈60% ITM Gamma 0.103 Theta -0.047 Vega 0.106 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$1.55	—		—	$1.10	$3.90	-0.723	11.8%	—	—
Call · $147 Daily-bar session Unknown Quote as of 2026-09-04 19:59:30.988 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $147 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:30.991 UTC Last — Breakeven — Implied vol 11.8% Delta -0.723 ≈72% ITM Gamma 0.104 Theta -0.031 Vega 0.092 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$1.40	—		—	$1.80	$4.80	-0.808	12.1%	—	—
Call · $148 Daily-bar session Unknown Quote as of 2026-09-04 19:59:30.990 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $148 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.000 UTC Last — Breakeven — Implied vol 12.1% Delta -0.808 ≈81% ITM Gamma 0.082 Theta -0.023 Vega 0.075 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$1.25	—		—	$2.60	$5.80	-0.861	13%	—	—
Call · $149 Daily-bar session Unknown Quote as of 2026-09-04 19:59:30.992 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $149 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.033 UTC Last — Breakeven — Implied vol 13% Delta -0.861 ≈86% ITM Gamma 0.062 Theta -0.017 Vega 0.061 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$1.15	—		—	$3.50	$6.80	-0.892	14.2%	—	—
Call · $150 Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.010 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $150 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:55.951 UTC Last — Breakeven — Implied vol 14.2% Delta -0.892 ≈89% ITM Gamma 0.048 Theta -0.014 Vega 0.051 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$1.10	—		—	$4.40	$7.80	-0.919	15.1%	—	—
Call · $151 Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.032 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $151 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.067 UTC Last — Breakeven — Implied vol 15.1% Delta -0.919 ≈92% ITM Gamma 0.037 Theta -0.01 Vega 0.041 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$1.10	—		—	$5.40	$8.80	-0.926	17%	—	—
Call · $152 Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.042 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $152 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.078 UTC Last — Breakeven — Implied vol 17% Delta -0.926 ≈93% ITM Gamma 0.03 Theta -0.011 Vega 0.039 Open interest — OI effective date — Model this put

About this data

Each contract's last price, day range and volume belong to the daily-bar session shown in its details; unknown means the source omitted that timestamp. Open interest has its own effective date shown separately; implied volatility and greeks are model values computed when fetched. This chain has daily-bar sessions unknown. Positioning totals are shown only when every returned open-interest value has the same known effective date. Bid and ask are real-time consolidated OPRA readings.

In-the-money strikes are tinted, deepening toward the money, and the bar beside each open-interest figure scales to the heaviest strike shown.