BlackRock (BLK) Options Chain

NYSE: BLKFinanceInvestment Bankers/Brokers/ServiceUSD

1,082.39+17.04 (+1.60%)

At close: Oct 9, 4:00 PM ET · Delayed 15 min

Expiration date

Expiration: Dec 15, 2028
Days to expiration: 796
Share price: $1,082.39
Put/call ratio (OI): 1.37
Put/call ratio (volume): 1.23
ATM implied volatility: 27.4%
Expected move: ±$437.25
Open interest (C / P): 626 / 858

BLK options summary

The BLK options chain for the December 15, 2028 expiration lists 71 call and 66 put contracts, with 796 days until expiration. Open interest stands at 626 calls and 858 puts, a put/call ratio of 1.37, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $1,080.00 strike is 27.4%, which implies the market expects a move of about ±$437.25 (40.4%) in BlackRock stock by expiration.

The most open interest sits at the $1,500.00 call (255 contracts) and the $520.00 put (141 contracts).

Summary generated from market data by MetaCap's automated system. Methodology

BLK options chain · December 15, 2028

BLK calls and puts by strike price. Shaded cells are in the money.
Calls							Puts
OI	Vol	IV	Last	Bid	Ask	Strike	Bid	Ask	Last	IV	Vol	OI
—	—	—	—	—	—	480.00	8.00	11.00	10.84	36.6%	10	58
—	—	—	—	—	—	490.00	8.60	11.50	12.20	36.1%	1	17
—	—	—	—	—	—	500.00	9.20	12.10	11.00	35.8%	1	17
—	—	—	—	—	—	520.00	10.20	13.70	12.52	35.2%	20	141
1	1	68.9%	561.00	644.00	654.00	540.00	11.70	15.00	15.48	34.4%	1	39
1	1	67.2%	545.40	627.00	637.00	560.00	13.20	16.70	15.50	33.9%	1	18
—	—	—	—	—	—	580.00	14.80	18.60	17.50	33.3%	2	6
0	2	—	523.30	0.00	0.00	600.00	16.50	20.60	23.70	32.8%	1	9
1	1	63.0%	499.50	579.00	589.00	620.00	—	—	—	—	—	—
—	—	—	—	—	—	640.00	18.00	25.40	25.10	31.8%	2	5
—	—	—	—	—	—	660.00	21.00	28.10	29.54	31.4%	1	4
—	—	—	—	—	—	680.00	25.80	31.60	29.40	31.1%	15	57
2	1	47.0%	463.94	467.00	477.00	700.00	26.00	34.40	33.07	30.6%	5	9
1	—	33.8%	346.63	403.00	413.00	720.00	31.00	36.90	35.60	29.9%	6	10
—	—	—	—	—	—	730.00	32.00	39.50	37.18	29.9%	6	10
—	—	—	—	—	—	740.00	33.80	41.40	38.55	29.7%	5	5
—	—	—	—	—	—	750.00	35.80	43.00	40.20	29.4%	5	5
1	1	40.2%	347.60	403.00	412.00	760.00	37.80	45.00	47.70	29.3%	4	81
1	1	22.0%	352.30	325.00	335.00	770.00	39.00	46.00	43.83	28.8%	10	77
0	1	53.9%	325.42	457.00	467.00	780.00	41.00	49.00	48.07	28.8%	4	8
—	—	—	—	—	—	790.00	43.00	52.00	50.23	28.9%	4	19
2	1	37.2%	360.00	364.00	374.00	800.00	45.40	52.50	55.60	28.2%	3	12
—	—	—	—	—	—	810.00	47.00	56.00	57.60	28.3%	3	58
—	—	—	—	—	—	820.00	85.00	94.00	83.50	36.0%	18	13
—	—	—	—	—	—	830.00	73.00	82.00	90.98	32.6%	3	2
—	—	—	—	—	—	840.00	91.00	101.00	88.50	35.8%	12	14
—	—	—	—	—	—	850.00	56.00	64.60	65.10	27.3%	1	7
—	—	—	—	—	—	860.00	82.00	92.00	100.38	32.2%	3	4
—	—	—	—	—	—	880.00	65.00	74.00	76.80	27.0%	—	1
0	1	—	251.00	0.00	0.00	890.00	—	—	—	—	—	—
15	2	41.4%	336.08	330.00	340.00	900.00	95.00	104.00	125.15	31.3%	3	17
1	1	41.2%	352.00	324.00	334.00	910.00	—	—	—	—	—	—
0	1	—	357.00	0.00	0.00	920.00	77.00	85.00	85.80	26.1%	1	3
0	1	—	351.00	0.00	0.00	930.00	0.00	0.00	117.13	1.6%	—	0
0	2	—	211.00	0.00	0.00	940.00	83.00	92.00	79.72	25.8%	2	2
22	35	39.1%	229.00	293.00	303.00	950.00	87.00	96.00	92.00	25.8%	2	8
2	1	33.6%	207.00	258.00	267.00	960.00	90.00	99.00	95.91	25.5%	1	3
5	1	47.6%	252.00	332.00	342.00	970.00	131.00	141.00	124.50	32.1%	1	2
1	1	47.3%	228.70	326.00	336.00	980.00	97.00	106.00	109.55	25.1%	3	2
3	1	47.0%	244.00	320.00	330.00	990.00	101.00	110.00	109.70	25.0%	6	16
9	2	34.0%	251.23	241.00	250.00	1,000.00	105.00	114.00	110.59	24.9%	1	16
1	1	46.5%	274.00	309.00	319.00	1,010.00	—	—	—	—	—	—
4	1	33.8%	221.46	231.00	240.00	1,020.00	105.50	114.00	162.11	23.2%	1	2
3	1	33.7%	217.45	226.00	235.00	1,030.00	—	—	—	—	—	—
0	2	45.6%	251.24	292.00	302.00	1,040.00	121.00	131.00	113.00	24.3%	4	6
0	1	—	299.00	0.00	0.00	1,050.00	116.50	125.00	169.50	22.5%	1	3
4	2	45.1%	249.91	281.00	291.00	1,060.00	119.80	128.00	174.50	22.1%	1	6
2	1	33.2%	227.40	206.00	215.00	1,070.00	124.00	132.00	179.60	21.9%	1	5
8	2	33.1%	209.40	202.00	210.00	1,080.00	127.00	136.00	167.50	21.6%	2	3
BLK $1,082.39
4	2	33.1%	194.69	197.00	206.00	1,090.00	171.00	180.00	217.87	27.7%	9	1
4	2	32.9%	194.16	193.00	201.00	1,100.00	149.00	158.00	154.00	23.3%	4	7
1	4	32.9%	219.70	189.00	197.00	1,110.00	154.00	163.10	158.40	23.2%	4	4
6	1	32.9%	193.00	184.00	193.00	1,120.00	159.00	169.00	157.00	23.2%	8	9
8	1	43.4%	175.72	245.00	255.00	1,130.00	190.00	199.00	241.34	26.9%	4	3
2	1	27.9%	176.50	145.00	154.00	1,140.00	204.00	211.00	166.08	27.8%	—	1
3	2	28.0%	172.50	141.00	151.00	1,150.00	175.00	184.00	158.00	22.6%	1	2
3	4	32.5%	233.30	167.00	176.00	1,160.00	181.00	190.00	168.10	22.5%	4	3
15	10	32.4%	233.50	164.00	172.00	1,170.00	187.00	195.00	165.95	22.3%	11	14
2	2	32.3%	230.31	159.00	168.00	1,180.00	192.00	201.00	172.78	22.2%	—	1
1	1	32.2%	156.77	156.00	164.00	1,190.00	—	—	—	—	—	—
12	2	32.1%	161.32	152.00	160.00	1,200.00	228.00	237.00	249.00	25.8%	1	2
0	1	1.6%	155.00	0.00	0.00	1,210.00	234.00	242.00	255.10	25.5%	—	2
0	1	1.6%	157.21	0.00	0.00	1,220.00	240.00	248.00	260.00	25.3%	—	1
0	2	1.6%	151.12	0.00	0.00	1,230.00	245.00	253.70	266.10	25.1%	—	2
2	1	40.9%	172.00	195.00	204.00	1,240.00	0.00	0.00	329.00	—	1	0
5	1	31.8%	131.74	134.00	143.00	1,250.00	0.00	0.00	336.46	—	1	0
0	1	1.6%	133.50	0.00	0.00	1,260.00	—	—	—	—	—	—
0	1	1.6%	126.35	0.00	0.00	1,270.00	—	—	—	—	—	—
0	5	1.6%	175.40	0.00	0.00	1,280.00	—	—	—	—	—	—
17	1	31.4%	116.74	118.00	126.30	1,300.00	—	—	—	—	—	—
5	1	31.4%	112.23	112.00	121.00	1,320.00	302.00	311.00	324.00	23.6%	—	1
8	1	33.5%	90.23	121.00	129.00	1,340.00	—	—	—	—	—	—
1	1	31.2%	120.90	101.00	110.00	1,360.00	—	—	—	—	—	—
21	10	31.1%	95.99	96.00	105.00	1,380.00	—	—	—	—	—	—
19	2	30.9%	98.90	91.00	99.40	1,400.00	359.00	368.00	382.00	22.4%	—	2
6	1	30.9%	86.50	86.00	95.00	1,420.00	374.00	383.00	395.00	22.1%	—	1
0	19	3.1%	62.11	0.00	0.00	1,440.00	—	—	—	—	—	—
8	10	30.9%	72.72	77.00	87.00	1,460.00	—	—	—	—	—	—
4	1	30.8%	112.60	73.00	83.00	1,480.00	—	—	—	—	—	—
255	2	30.7%	69.50	70.00	79.00	1,500.00	—	—	—	—	—	—
4	—	30.8%	101.26	69.00	76.00	1,520.00	—	—	—	—	—	—
1	2	30.5%	67.95	59.00	68.00	1,560.00	—	—	—	—	—	—
—	—	—	—	—	—	1,580.00	498.00	508.00	501.75	17.5%	2	1
6	2	30.4%	61.68	53.00	62.00	1,600.00	—	—	—	—	—	—
21	4	30.0%	55.73	50.60	57.10	1,620.00	536.00	545.00	563.34	17.1%	1	1
8	3	33.2%	72.00	63.00	71.00	1,640.00	—	—	—	—	—	—
6	6	36.5%	72.00	77.00	86.00	1,660.00	574.00	584.00	599.50	17.3%	—	0
8	1	30.4%	59.00	43.00	52.00	1,680.00	—	—	—	—	—	—
60	2	30.5%	49.22	41.00	50.00	1,700.00	—	—	—	—	—	—
1	—	30.6%	46.00	37.30	46.00	1,740.00	—	—	—	—	—	—
9	2	30.5%	43.55	35.50	44.00	1,760.00	—	—	—	—	—	—

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 BLK put/call ratio?

For the December 15, 2028 expiration, the BLK put/call ratio based on open interest is 1.37 (858 puts vs 626 calls), and 1.23 based on today's volume. A ratio above 1 means more puts than calls.

What is BLK's implied volatility?

At-the-money implied volatility for BLK options expiring December 15, 2028 is about 27.4%, an annualized estimate of how much the market expects BlackRock stock to move.

How many BLK option expiration dates are there?

BLK has 15 listed expiration dates, from Oct 16, 2026 to Jan 19, 2029.

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.