FDUS · FIDUS INVESTMENT Corp

Track FDUS — free

$19.59 -0.20 (-1.01%) At close · Aug 14

Market Cap

$743.53M

37.95M

Options Chain

Underlying $19.59 · at close Aug 14, 2026 Options Calculator

Positioning

Aug 21, 2026 · 5 days to expiry · 24 contracts · mixed snapshot sessions · Jul 15, 2026–Aug 11, 2026; 18 unknown

Put / call OI

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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 5d Sep 18 33d Dec 18 124d Mar 19 215d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	1411.1%	0.98	—		—	—	—	—	0
Call · $2.5 In the money Snapshot session Unknown Last — Breakeven — Implied vol 1411.1% Delta 0.98 ≈98% ITM Gamma 0.001 Theta -0.146 Vega 0.001 Open interest 0 Model this call Put · $2.5 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	651.3%	0.983	—		—	—	—	—	0
Call · $5 In the money Snapshot session Unknown Last — Breakeven — Implied vol 651.3% Delta 0.983 ≈98% ITM Gamma 0.003 Theta -0.055 Vega 0.001 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	—	661.5%	0.944	—		—	—	—	—	0
Call · $7.5 In the money Snapshot session Unknown Last — Breakeven — Implied vol 661.5% Delta 0.944 ≈94% ITM Gamma 0.007 Theta -0.159 Vega 0.002 Open interest 0 Model this call Put · $7.5 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $10 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $10 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $12.5 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $12.5 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	159.1%	0.931	—		—	—	—	—	0
Call · $15 In the money Snapshot session Unknown Last — Breakeven — Implied vol 159.1% Delta 0.931 ≈93% ITM Gamma 0.036 Theta -0.043 Vega 0.004 Open interest 0 Model this call Put · $15 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
1	1	71.9%	0.91	$2.50		$0.05	-0.134	87.4%	10	10
Call · $17.5 In the money Snapshot session Jul 15, 2026 Last $2.50 Breakeven $20.00 Implied vol 71.9% Delta 0.91 ≈91% ITM Gamma 0.101 Theta -0.022 Vega 0.004 Open interest 1 Model this call Put · $17.5 Snapshot session Jul 17, 2026 Last $0.05 Breakeven $17.45 Implied vol 87.4% Delta -0.134 ≈13% ITM Gamma 0.105 Theta -0.043 Vega 0.006 Open interest 10 Model this put
Underlying $19.59
310	2	30.2%	0.282	$0.26		$0.30	-0.709	31.5%	43	42
Call · $20 Snapshot session Aug 11, 2026 Last $0.26 Breakeven $20.26 Implied vol 30.2% Delta 0.282 ≈28% ITM Gamma 0.473 Theta -0.021 Vega 0.008 Open interest 310 Model this call Put · $20 In the money Snapshot session Aug 7, 2026 Last $0.30 Breakeven $19.70 Implied vol 31.5% Delta -0.709 ≈71% ITM Gamma 0.455 Theta -0.028 Vega 0.008 Open interest 42 Model this put
110	98	—	—	$0.05		—	—	—	—	0
Call · $22.5 Snapshot session Aug 6, 2026 Last $0.05 Breakeven $22.55 Implied vol — Delta — Gamma — Theta — Vega — Open interest 110 Model this call Put · $22.5 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
1	1	—	—	$0.05		—	—	—	—	0
Call · $25 Snapshot session Aug 10, 2026 Last $0.05 Breakeven $25.05 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this call Put · $25 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $30 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $30 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $35 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $35 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — 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 15, 2026–Aug 11, 2026; 18 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 1513363 CUSIP 316500107 13F (30d) 120 filings 120 filers Visit website Investor relations