Bel Fuse (BELFB) Options Chain
NASDAQ: BELFBTechnologyElectronic ComponentsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Dec 18, 2026
- Days to expiration
- 67
- Share price
- $244.50
- Put/call ratio (OI)
- 0.43
- Put/call ratio (volume)
- 0.23
- Expected move
- ±$99.21
- Open interest (C / P)
- 210 / 91
BELFB options summary
The BELFB options chain for the December 18, 2026 expiration lists 33 call and 27 put contracts, with 67 days until expiration. Open interest stands at 210 calls and 91 puts, a put/call ratio of 0.43, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $240.00 strike is 94.7%, which implies the market expects a move of about ±$99.21 (40.6%) in Bel Fuse stock by expiration.
The most open interest sits at the $220.00 call (90 contracts) and the $320.00 put (53 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
BELFB options chain · December 18, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 197.40 | 178.00 | 187.00 | 95.00 | 0.00 | 0.00 | 4.00 | |||||
| 170.70 | 141.00 | 149.40 | 100.00 | 0.00 | 10.00 | 1.50 | |||||
| 165.90 | 136.00 | 145.70 | 105.00 | — | — | — | |||||
| 156.50 | 126.00 | 135.70 | 115.00 | — | — | — | |||||
| — | — | — | 120.00 | 0.00 | 0.00 | 3.00 | |||||
| — | — | — | 130.00 | 0.00 | 0.00 | 3.63 | |||||
| — | — | — | 135.00 | 0.00 | 0.00 | 4.00 | |||||
| 150.50 | 139.50 | 143.90 | 145.00 | 0.00 | 0.00 | 5.50 | |||||
| — | — | — | 150.00 | 0.00 | 0.00 | 5.50 | |||||
| 85.70 | 0.00 | 0.00 | 155.00 | 0.00 | 0.00 | 6.00 | |||||
| 81.50 | 0.00 | 0.00 | 160.00 | 0.10 | 10.00 | 7.00 | |||||
| 68.18 | 0.00 | 0.00 | 170.00 | — | — | — | |||||
| 83.73 | 0.00 | 0.00 | 175.00 | 0.00 | 0.00 | 9.40 | |||||
| 105.00 | 110.50 | 114.50 | 180.00 | — | — | — | |||||
| 106.70 | 0.00 | 0.00 | 190.00 | 0.00 | 0.00 | 8.49 | |||||
| 89.50 | 88.00 | 97.70 | 195.00 | — | — | — | |||||
| 69.33 | 0.00 | 0.00 | 200.00 | 6.00 | 15.00 | 11.80 | |||||
| 99.02 | 88.00 | 92.40 | 210.00 | — | — | — | |||||
| 36.10 | 62.50 | 66.50 | 220.00 | 0.00 | 0.00 | 19.00 | |||||
| 93.68 | 71.00 | 81.00 | 230.00 | — | — | — | |||||
| 45.90 | 51.00 | 55.80 | 240.00 | 20.00 | 30.00 | 24.00 | |||||
| 48.60 | 0.00 | 0.00 | 250.00 | 0.00 | 0.00 | 39.00 | |||||
| 74.30 | 46.00 | 55.80 | 260.00 | — | — | — | |||||
| 17.89 | 0.00 | 0.00 | 270.00 | — | — | — | |||||
| 11.30 | 0.00 | 0.00 | 280.00 | 0.00 | 0.00 | 28.00 | |||||
| 30.00 | 9.60 | 19.00 | 290.00 | 40.00 | 44.90 | 57.90 | |||||
| 10.00 | 0.00 | 0.00 | 300.00 | 48.10 | 58.00 | 47.08 | |||||
| 10.30 | 0.00 | 0.00 | 310.00 | 61.00 | 65.50 | 55.60 | |||||
| 38.50 | 31.50 | 36.00 | 320.00 | 67.50 | 72.00 | 66.30 | |||||
| 40.08 | 28.50 | 32.90 | 330.00 | — | — | — | |||||
| 11.50 | 0.00 | 0.00 | 340.00 | 70.00 | 74.90 | 70.50 | |||||
| 15.90 | 0.00 | 0.00 | 350.00 | 88.10 | 93.00 | 88.80 | |||||
| 13.80 | 20.50 | 25.40 | 360.00 | — | — | — | |||||
| 28.37 | 9.00 | 18.50 | 370.00 | 103.60 | 108.50 | 106.70 | |||||
| — | — | — | 380.00 | 111.50 | 116.50 | 108.00 | |||||
| — | — | — | 390.00 | 107.00 | 111.90 | 120.00 | |||||
| — | — | — | 400.00 | 115.00 | 119.90 | 128.50 | |||||
| — | — | — | 410.00 | 0.00 | 0.00 | 145.50 | |||||
| 9.90 | 3.00 | 12.00 | 420.00 | — | — | — | |||||
| 10.50 | 2.00 | 11.00 | 430.00 | — | — | — | |||||
| 10.00 | 1.00 | 10.90 | 440.00 | — | — | — | |||||
In-the-money callsIn-the-money puts. IV = implied volatility, OI = open interest (contracts). Each contract covers 100 shares. Quotes delayed at least 15 minutes.
Frequently asked questions
What is the BELFB put/call ratio?
For the December 18, 2026 expiration, the BELFB put/call ratio based on open interest is 0.43 (91 puts vs 210 calls), and 0.23 based on today's volume. A ratio above 1 means more puts than calls.
What is BELFB's implied volatility?
At-the-money implied volatility for BELFB options expiring December 18, 2026 is about 94.7%, an annualized estimate of how much the market expects Bel Fuse stock to move.
How many BELFB option expiration dates are there?
BELFB has 5 listed expiration dates, from Oct 16, 2026 to Mar 19, 2027.
What does "in the money" mean?
A call is in the money when the strike price is below the current share price; a put is in the money when the strike is above it. In-the-money contracts have intrinsic value and are shaded in the table.