EFX · Equifax Inc · Options Chain

Track EFX — free

$168.09 -3.53 (-2.06%) At close · Sep 9

S&P 500 member Russell 1000 member Rebalance outlook locked

Market Cap

$20.16B

117.48M

Options Chain

Underlying $168.09 · at close Sep 9, 2026 Options Calculator

Pull option chains with greeks and open interest through the options chain API or MCP →

Positioning

Sep 18, 2026 · 8 days to expiry · 46 contracts · mixed daily-bar sessions · Jul 21, 2026–Sep 9, 2026; 13 unknown

Put / call OI

1.31

Put-heavy positioning

Open interest

2,081

as of Sep 8, 2026

Volume

—

dated and unknown daily-bar sessions

Max pain

$185.00

$16.91 above spot

ATM implied vol

43.8%

market's expected move

Open interest by strike

Calls Puts

115

120

125

130

135

140

145

150

155

160

165

170

175

180

185

190

195

200

210

220

230

240

250

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Sep 18 8d Oct 16 36d Dec 18 99d Jan 15 127d Apr 16 218d

Calls								Puts
OI	Vol	IV	Δ	Bid	Ask	Last	Strike	Last	Bid	Ask	Δ	IV	Vol	OI
—	—	—	—	$51.90	$55.40	—		—	$0.00	$2.15	—	—	—	—
Call · $115 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:59:40.726 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $115 Daily-bar session Unknown Quote as of 2026-09-09 19:59:52.433 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$46.90	$50.40	—		—	$0.00	$2.15	—	—	—	—
Call · $120 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:57:46.622 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $120 Daily-bar session Unknown Quote as of 2026-09-09 19:59:52.433 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$41.90	$44.70	—		—	$0.00	$2.15	—	—	—	—
Call · $125 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:59:40.726 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $125 Daily-bar session Unknown Quote as of 2026-09-09 19:59:52.433 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
16	16	—	—	$36.90	$40.40	$47.10		$0.01	$0.00	$2.15	—	—	217	239
Call · $130 In the money Daily-bar session Sep 4, 2026 Quote as of 2026-09-09 19:59:40.726 UTC Last $47.10 Breakeven $177.10 Implied vol — Delta — Gamma — Theta — Vega — Open interest 16 OI effective date Sep 8, 2026 Model this call Put · $130 Daily-bar session Sep 4, 2026 Quote as of 2026-09-09 19:59:52.433 UTC Last $0.01 Breakeven $129.99 Implied vol — Delta — Gamma — Theta — Vega — Open interest 239 OI effective date Sep 8, 2026 Model this put
1	1	97.5%	0.945	$32.20	$35.40	$42.10		$0.05	$0.00	$2.15	—	—	20	23
Call · $135 In the money Daily-bar session Sep 4, 2026 Quote as of 2026-09-09 19:59:41.816 UTC Last $42.10 Breakeven $177.10 Implied vol 97.5% Delta 0.945 ≈94% ITM Gamma 0.005 Theta -0.182 Vega 0.028 Open interest 1 OI effective date Sep 8, 2026 Model this call Put · $135 Daily-bar session Aug 24, 2026 Quote as of 2026-09-09 19:59:52.433 UTC Last $0.05 Breakeven $134.95 Implied vol — Delta — Gamma — Theta — Vega — Open interest 23 OI effective date Sep 8, 2026 Model this put
—	—	82.6%	0.941	$27.10	$30.40	—		$0.15	$0.00	$2.20	—	—	115	134
Call · $140 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:59:40.726 UTC Last — Breakeven — Implied vol 82.6% Delta 0.941 ≈94% ITM Gamma 0.006 Theta -0.164 Vega 0.029 Open interest — OI effective date — Model this call Put · $140 Daily-bar session Sep 4, 2026 Quote as of 2026-09-09 19:59:52.433 UTC Last $0.15 Breakeven $139.85 Implied vol — Delta — Gamma — Theta — Vega — Open interest 134 OI effective date Sep 8, 2026 Model this put
1	1	75.4%	0.917	$22.40	$25.50	$29.25		$0.55	$0.00	$2.25	—	—	1	5
Call · $145 In the money Daily-bar session Sep 4, 2026 Quote as of 2026-09-09 19:59:40.726 UTC Last $29.25 Breakeven $174.25 Implied vol 75.4% Delta 0.917 ≈92% ITM Gamma 0.008 Theta -0.192 Vega 0.038 Open interest 1 OI effective date Sep 8, 2026 Model this call Put · $145 Daily-bar session Aug 14, 2026 Quote as of 2026-09-09 19:59:52.433 UTC Last $0.55 Breakeven $144.45 Implied vol — Delta — Gamma — Theta — Vega — Open interest 5 OI effective date Sep 8, 2026 Model this put
2	4	62%	0.902	$17.20	$20.70	$24.50		$0.11	$0.00	$2.45	—	—	1	31
Call · $150 In the money Daily-bar session Sep 4, 2026 Quote as of 2026-09-09 19:59:40.726 UTC Last $24.50 Breakeven $174.50 Implied vol 62% Delta 0.902 ≈90% ITM Gamma 0.011 Theta -0.18 Vega 0.043 Open interest 2 OI effective date Sep 8, 2026 Model this call Put · $150 Daily-bar session Sep 4, 2026 Quote as of 2026-09-09 19:57:59.357 UTC Last $0.11 Breakeven $149.89 Implied vol — Delta — Gamma — Theta — Vega — Open interest 31 OI effective date Sep 8, 2026 Model this put
2	2	58.4%	0.839	$13.40	$15.60	$14.80		$0.44	$0.00	$2.80	—	—	1	11
Call · $155 In the money Daily-bar session Jul 21, 2026 Quote as of 2026-09-09 19:59:40.726 UTC Last $14.80 Breakeven $169.80 Implied vol 58.4% Delta 0.839 ≈84% ITM Gamma 0.017 Theta -0.235 Vega 0.061 Open interest 2 OI effective date Sep 8, 2026 Model this call Put · $155 Daily-bar session Sep 8, 2026 Quote as of 2026-09-09 19:57:46.623 UTC Last $0.44 Breakeven $154.56 Implied vol — Delta — Gamma — Theta — Vega — Open interest 11 OI effective date Sep 8, 2026 Model this put
2	1	56.1%	0.741	$9.10	$11.90	$18.00		$1.75	$0.60	$2.35	-0.219	45.7%	1	30
Call · $160 In the money Daily-bar session Sep 4, 2026 Quote as of 2026-09-09 19:59:44.857 UTC Last $18.00 Breakeven $178.00 Implied vol 56.1% Delta 0.741 ≈74% ITM Gamma 0.023 Theta -0.294 Vega 0.081 Open interest 2 OI effective date Sep 8, 2026 Model this call Put · $160 Daily-bar session Sep 9, 2026 Quote as of 2026-09-09 19:59:47.084 UTC Last $1.75 Breakeven $158.25 Implied vol 45.7% Delta -0.219 ≈22% ITM Gamma 0.026 Theta -0.206 Vega 0.074 Open interest 30 OI effective date Sep 8, 2026 Model this put
10	11	50.1%	0.617	$5.70	$7.70	$10.09		$3.66	$1.50	$4.20	-0.369	43.4%	1	288
Call · $165 In the money Daily-bar session Sep 8, 2026 Quote as of 2026-09-09 19:59:42.083 UTC Last $10.09 Breakeven $175.09 Implied vol 50.1% Delta 0.617 ≈62% ITM Gamma 0.031 Theta -0.307 Vega 0.095 Open interest 10 OI effective date Sep 8, 2026 Model this call Put · $165 Daily-bar session Sep 9, 2026 Quote as of 2026-09-09 19:59:40.726 UTC Last $3.66 Breakeven $161.34 Implied vol 43.4% Delta -0.369 ≈37% ITM Gamma 0.035 Theta -0.248 Vega 0.094 Open interest 288 OI effective date Sep 8, 2026 Model this put
Underlying $168.09
14	8	47.9%	0.455	$2.70	$5.20	$5.00		$5.50	$3.50	$6.30	-0.559	39.6%	35	23
Call · $170 Daily-bar session Sep 9, 2026 Quote as of 2026-09-09 19:59:40.726 UTC Last $5.00 Breakeven $175.00 Implied vol 47.9% Delta 0.455 ≈46% ITM Gamma 0.033 Theta -0.303 Vega 0.099 Open interest 14 OI effective date Sep 8, 2026 Model this call Put · $170 In the money Daily-bar session Sep 9, 2026 Quote as of 2026-09-09 19:59:21.501 UTC Last $5.50 Breakeven $164.50 Implied vol 39.6% Delta -0.559 ≈56% ITM Gamma 0.04 Theta -0.233 Vega 0.098 Open interest 23 OI effective date Sep 8, 2026 Model this put
17	23	51.1%	0.314	$0.95	$4.00	$4.00		$7.43	$7.50	$9.70	-0.719	43.6%	2	51
Call · $175 Daily-bar session Sep 8, 2026 Quote as of 2026-09-09 19:58:31.216 UTC Last $4.00 Breakeven $179.00 Implied vol 51.1% Delta 0.314 ≈31% ITM Gamma 0.028 Theta -0.287 Vega 0.088 Open interest 17 OI effective date Sep 8, 2026 Model this call Put · $175 In the money Daily-bar session Sep 9, 2026 Quote as of 2026-09-09 19:59:40.726 UTC Last $7.43 Breakeven $167.57 Implied vol 43.6% Delta -0.719 ≈72% ITM Gamma 0.031 Theta -0.216 Vega 0.084 Open interest 51 OI effective date Sep 8, 2026 Model this put
25	1	—	—	$0.00	$3.40	$1.95		$7.80	$11.00	$13.60	-0.881	37.8%	227	223
Call · $180 Daily-bar session Sep 8, 2026 Quote as of 2026-09-09 19:57:46.656 UTC Last $1.95 Breakeven $181.95 Implied vol — Delta — Gamma — Theta — Vega — Open interest 25 OI effective date Sep 8, 2026 Model this call Put · $180 In the money Daily-bar session Sep 4, 2026 Quote as of 2026-09-09 19:59:49.084 UTC Last $7.80 Breakeven $172.20 Implied vol 37.8% Delta -0.881 ≈88% ITM Gamma 0.021 Theta -0.101 Vega 0.05 Open interest 223 OI effective date Sep 8, 2026 Model this put
132	22	—	—	$0.00	$2.85	$1.15		$14.96	$15.30	$18.10	—	—	4	7
Call · $185 Daily-bar session Sep 8, 2026 Quote as of 2026-09-09 19:58:31.215 UTC Last $1.15 Breakeven $186.15 Implied vol — Delta — Gamma — Theta — Vega — Open interest 132 OI effective date Sep 8, 2026 Model this call Put · $185 In the money Daily-bar session Sep 4, 2026 Quote as of 2026-09-09 19:59:40.726 UTC Last $14.96 Breakeven $170.04 Implied vol — Delta — Gamma — Theta — Vega — Open interest 7 OI effective date Sep 8, 2026 Model this put
81	4	—	—	$0.00	$2.55	$0.72		$19.20	$20.20	$22.80	—	—	1	5
Call · $190 Daily-bar session Sep 9, 2026 Quote as of 2026-09-09 19:56:08.569 UTC Last $0.72 Breakeven $190.72 Implied vol — Delta — Gamma — Theta — Vega — Open interest 81 OI effective date Sep 8, 2026 Model this call Put · $190 In the money Daily-bar session Sep 8, 2026 Quote as of 2026-09-09 19:58:31.215 UTC Last $19.20 Breakeven $170.80 Implied vol — Delta — Gamma — Theta — Vega — Open interest 5 OI effective date Sep 8, 2026 Model this put
140	3	—	—	$0.00	$2.40	$0.75		$7.80	$25.00	$28.50	—	—	1	2
Call · $195 Daily-bar session Sep 8, 2026 Quote as of 2026-09-09 19:56:08.569 UTC Last $0.75 Breakeven $195.75 Implied vol — Delta — Gamma — Theta — Vega — Open interest 140 OI effective date Sep 8, 2026 Model this call Put · $195 In the money Daily-bar session Aug 24, 2026 Quote as of 2026-09-09 19:59:40.726 UTC Last $7.80 Breakeven $187.20 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 OI effective date Sep 8, 2026 Model this put
321	6	—	—	$0.00	$2.30	$0.10		$27.90	$29.90	$32.60	—	—	8	109
Call · $200 Daily-bar session Sep 9, 2026 Quote as of 2026-09-09 19:59:41.997 UTC Last $0.10 Breakeven $200.10 Implied vol — Delta — Gamma — Theta — Vega — Open interest 321 OI effective date Sep 8, 2026 Model this call Put · $200 In the money Daily-bar session Sep 9, 2026 Quote as of 2026-09-09 19:59:51.833 UTC Last $27.90 Breakeven $172.10 Implied vol — Delta — Gamma — Theta — Vega — Open interest 109 OI effective date Sep 8, 2026 Model this put
105	1	—	—	$0.00	$0.10	$0.05		—	$39.80	$43.30	—	—	—	—
Call · $210 Daily-bar session Sep 9, 2026 Quote as of 2026-09-09 18:42:07.442 UTC Last $0.05 Breakeven $210.05 Implied vol — Delta — Gamma — Theta — Vega — Open interest 105 OI effective date Sep 8, 2026 Model this call Put · $210 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:59:40.726 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
21	1	—	—	$0.00	$0.05	$0.05		—	$49.80	$53.30	—	—	—	—
Call · $220 Daily-bar session Sep 9, 2026 Quote as of 2026-09-09 13:45:44.120 UTC Last $0.05 Breakeven $220.05 Implied vol — Delta — Gamma — Theta — Vega — Open interest 21 OI effective date Sep 8, 2026 Model this call Put · $220 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:59:40.726 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
5	5	—	—	$0.00	$2.00	$1.31		—	$59.80	$62.80	—	—	—	—
Call · $230 Daily-bar session Aug 21, 2026 Quote as of 2026-09-09 13:30:31.412 UTC Last $1.31 Breakeven $231.31 Implied vol — Delta — Gamma — Theta — Vega — Open interest 5 OI effective date Sep 8, 2026 Model this call Put · $230 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:59:40.726 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
5	5	—	—	$0.00	$2.15	$1.03		—	$69.80	$73.50	—	—	—	—
Call · $240 Daily-bar session Aug 21, 2026 Quote as of 2026-09-09 19:56:44.633 UTC Last $1.03 Breakeven $241.03 Implied vol — Delta — Gamma — Theta — Vega — Open interest 5 OI effective date Sep 8, 2026 Model this call Put · $240 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:59:42.189 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$2.15	—		—	$79.80	$83.20	—	—	—	—
Call · $250 Daily-bar session Unknown Quote as of 2026-09-09 19:56:53.627 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $250 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:59:42.248 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — 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 mixed daily-bar sessions · Jul 21, 2026–Sep 9, 2026; 13 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. Max pain is the listed strike where the most open interest would expire worthless — a positioning reference, not a forecast.

Key facts CIK 33185 CUSIP 294429105 13F (30d) 395 filings 387 filers Visit website Investor relations