CRDF · Cardiff Oncology, Inc.

Track CRDF — free Ask ALVIS about CRDF

$0.81 -0.01 (-0.98%) At close · Jul 29

Market Cap

$55.38M

68.37M

Options Chain

15-min delayed Underlying $0.81 · at close Jul 29, 2026 Options Calculator

Positioning

Aug 21, 2026 · 22 days to expiry · 14 contracts

Put / call OI

0.01

Call-heavy positioning

Open interest

14,998

contracts outstanding

Volume

1,102

traded today

Max pain

$0.50

$0.31 below spot

ATM implied vol

169.2%

market's expected move

Open interest by strike

Calls Puts

0.5

1.5

2.5

7.5

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 22d Sep 18 50d Nov 20 113d Jan 15 169d Feb 19 204d Jan 21 540d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
206	3	386.5%	0.838	$0.40		$0.06	-0.154	307.7%	1	10
Call · $0.5 In the money Last $0.40 Breakeven $0.90 Implied vol 386.5% Delta 0.838 ≈84% ITM Gamma 0.314 Theta -0.004 Vega 0 Open interest 206 Model this call Put · $0.5 Last $0.06 Breakeven $0.44 Implied vol 307.7% Delta -0.154 ≈15% ITM Gamma 0.385 Theta -0.003 Vega 0.001 Open interest 10 Model this put
Underlying $0.81
516	56	169.2%	0.388	$0.05		$0.22	—	—	2	3
Call · $1 Last $0.05 Breakeven $1.05 Implied vol 169.2% Delta 0.388 ≈39% ITM Gamma 1.133 Theta -0.003 Vega 0.001 Open interest 516 Model this call Put · $1 In the money Last $0.22 Breakeven $0.78 Implied vol — Delta — Gamma — Theta — Vega — Open interest 3 Model this put
257	5	348.4%	0.386	$0.04		$0.40	-0.558	392.7%	2	73
Call · $1.5 Last $0.04 Breakeven $1.54 Implied vol 348.4% Delta 0.386 ≈39% ITM Gamma 0.55 Theta -0.006 Vega 0.001 Open interest 257 Model this call Put · $1.5 In the money Last $0.40 Breakeven $1.10 Implied vol 392.7% Delta -0.558 ≈56% ITM Gamma 0.498 Theta -0.007 Vega 0.001 Open interest 73 Model this put
795	36	376.6%	0.31	$0.05		$0.80	-0.715	361%	2	2
Call · $2 Last $0.05 Breakeven $2.05 Implied vol 376.6% Delta 0.31 ≈31% ITM Gamma 0.461 Theta -0.006 Vega 0.001 Open interest 795 Model this call Put · $2 In the money Last $0.80 Breakeven $1.20 Implied vol 361% Delta -0.715 ≈71% ITM Gamma 0.469 Theta -0.005 Vega 0.001 Open interest 2 Model this put
6.8k	600	682.6%	0.57	$0.05		$1.31	-0.731	412.6%	1	17
Call · $2.5 Last $0.05 Breakeven $2.55 Implied vol 682.6% Delta 0.57 ≈57% ITM Gamma 0.276 Theta -0.012 Vega 0.001 Open interest 6.8k Model this call Put · $2.5 In the money Last $1.31 Breakeven $1.19 Implied vol 412.6% Delta -0.731 ≈73% ITM Gamma 0.403 Theta -0.006 Vega 0.001 Open interest 17 Model this put
6.1k	300	514.9%	0.209	$0.05		—	-0.716	574.9%	—	0
Call · $5 Last $0.05 Breakeven $5.05 Implied vol 514.9% Delta 0.209 ≈21% ITM Gamma 0.272 Theta -0.007 Vega 0.001 Open interest 6.1k Model this call Put · $5 In the money Last — Breakeven — Implied vol 574.9% Delta -0.716 ≈72% ITM Gamma 0.289 Theta -0.008 Vega 0.001 Open interest 0 Model this put
221	94	578.3%	0.197	$0.17		—	-0.727	648.9%	—	0
Call · $7.5 Last $0.17 Breakeven $7.67 Implied vol 578.3% Delta 0.197 ≈20% ITM Gamma 0.232 Theta -0.007 Vega 0 Open interest 221 Model this call Put · $7.5 In the money Last — Breakeven — Implied vol 648.9% Delta -0.727 ≈73% ITM Gamma 0.252 Theta -0.009 Vega 0.001 Open interest 0 Model this put

About this data

Greeks, implied volatility, open interest and the last price come from the latest daily snapshot and are 15-minute delayed. 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. Max pain is the listed strike where the most open interest would expire worthless — a positioning reference, not a forecast.

Key facts CIK 1213037 CUSIP 14147L108 13F (30d) 23 filings 23 filers Visit website Investor relations