SMCI - Options Database

SMCI

SUPER MICRO COMPUTER

$29.69 +16.41%

(7/21 19:03) ◀

Wednesday, July 22, 2026 (9:35am)

▶ (7/22 09:40)

◀ 7/22 09:35 ▶

Option Volume

Detail

ℹ

Current (07/22 9:35am) 57,773

Calls: 50,700 (88%)

Puts: 7,073 (12%)

Prior (07/06) 6,741

Calls: 3,776 (56%)

Puts: 2,965 (44%)

Current vs Prior +757.04%

Calls: +1242.69% (Calls)

Puts: +138.55% (Puts)

Prior 7-Day Total 530,019

Calls: 375,131 (71%)

Puts: 154,888 (29%)

Prior 7-Day Average 75,717

Calls: 53,590 (71%)

Puts: 22,126 (29%)

Current vs Prior 7-Day Avg -23.70%

Calls: -5.39%

Puts: -68.03%

Sentiment BULLISH

Dollar Volume

Detail

ℹ

Current (07/22 9:35am) $12.81M

Calls: $11.75M (92%)

Puts: $1.07M (8%)

Prior (07/06) $1.15M

Calls: $611.7K (53%)

Puts: $538.3K (47%)

Current vs Prior +1014.22%

Calls: +1820.13%

Puts: +98.33%

Prior 7-Day Total $94.18M

Calls: $74.33M (79%)

Puts: $19.86M (21%)

Prior 7-Day Average $13.45M

Calls: $10.62M (79%)

Puts: $2.84M (21%)

Current vs Prior 7-Day Avg -4.76%

Calls: +10.62%

Puts: -62.36%

Sentiment BULLISH

Put/Call Ratio

Detail

ℹ

Current (07/22 9:35am) 0.14

Prior (07/06) 0.79

Current vs Prior -82.23%

Prior 7-Day Average 0.64

Current vs Prior 7-Day Avg -78.15%

Sentiment BULLISH

Open Interest

Detail

ℹ

Current (07/22 9:35am) 2,271,086

Calls: 1,261,068 (56%)

Puts: 1,010,018 (44%)

Prior (07/06) 2,396,398

Calls: 1,301,628 (54%)

Puts: 1,094,770 (46%)

Current vs Prior -5.23%

Prior 7-Day Total 16,531,450

Calls: 8,863,576 (54%)

Puts: 7,667,874 (46%)

Prior 7-Day Average 2,361,635

Calls: 1,266,225 (54%)

Puts: 1,095,410 (46%)

Current vs Prior 7-Day Avg -3.83%

Sentiment BEARISH

Expected Move

Detail

ℹ

WKMO Expiry (07/24) | Next (07/31)Expiry (08/21) | Next (09/18)

Current 9.16% | 13.88%25.70% | 32.70%

Prior 7.61% | 12.54%15.98% | 30.66%

Current vs Prior +20.34% | +10.67%+60.78% | +6.68%

Prior 7-Day Avg 10.14% | 13.94%14.38% | 30.69%

Current vs 7-Day Avg -9.62% | -0.43%+78.75% | +6.56%

Prior 7-Day Eod 7.61% | 12.54%23.96% | 33.18%

Current vs 7-Day Eod +20.34% | +10.67%+7.25% | -1.42%

Sentiment BEARISHBEARISH

Relative Spread

Detail

ℹ

Expiry | Next

Current 4.04% | 5.79%

Calls: 3.76% | 4.48%

Puts: 4.32% | 7.11%

Prior 5.39% | 6.66%

Calls: 4.90% | 8.05%

Puts: 5.88% | 5.26%

Current vs Prior -25.05% | -13.06%

Prior 7-Day Avg 5.25% | 5.85%

Calls: 5.12% | 6.82%

Puts: 5.37% | 4.87%

Current vs 7-Day Avg -22.97% | -0.98%

Liquidity Acceptable

Add Card

🤖 AI Insights

Strong bullish conviction with 92% of dollar volume in calls ($11.75M) vs puts ($1.07M). Massive premium surge with dollar volume up 1014% vs prior. Unusually high activity with volume up 757% vs prior - elevated interest. Extreme bullish P/C ratio of 0.14 - heavy call buying (50,700 calls vs 7,073 puts).

Smart Money BULLISH

Retail Flow BULLISH

Overall BULLISH

Dollar Volume

Option Volume

Put/Call Ratio

Open Interest

Expected Move

Current BULLISH

Prior BULLISH

7-Day Avg BULLISH

Current BULLISH

Prior BULLISH

7-Day Avg NEUTRAL

Current BULLISH

Prior NEUTRAL

7-Day Avg NEUTRAL

Current BULLISH

Prior NEUTRAL

7-Day Avg NEUTRAL

Current BEARISH

Prior BULLISH

7-Day Avg BULLISH

Sentiment Timeline (Today)

Time	Smart Money	Retail	Overall
10:00	BULLISH	BULLISH	BULLISH
09:55	BULLISH	BULLISH	BULLISH
09:50	BULLISH	BULLISH	BULLISH
09:45	BULLISH	BULLISH	BULLISH
09:40	BULLISH	BULLISH	BULLISH
09:35	BULLISH	BULLISH	BULLISH

📈 Options Analysis

🎯 Tightest Spreads

💰 Best Value Under $1

📊 High Delta (ITM)

🔥 High Volume

⏰ Backwardation

📈 Debit Spreads

📉 Credit Spreads

📅 Calendar Spreads

⚡ Straddles

🔀 Strangles

🦅 Iron Condors

🦋 Butterflies

⚖️ Ratio Spreads

🛡️ Covered Calls

🎯

Tightest Spreads

💰

Best Value <$1

📊

High Delta

⚖️

Ratio Spreads

🛡️

Covered Calls

Options with the tightest bid-ask spreads (<10%). Lower spreads = better fills and less slippage. Showing top 95 of results (avg 6.7%, best 2.7%)

CALLS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$30.00	Aug 21	3.60	3.70	$3.65	2.7%	1.2K	0.55	13.8K
$27.00	Jul 24	2.96	3.05	$3.01	3.0%	890	0.83	16.5K
$35.00	Aug 21	1.94	2.00	$1.97	3.0%	166	0.36	10.5K
$25.00	Jul 24	4.70	4.85	$4.78	3.1%	1.2K	0.93	12.1K
$33.00	Aug 21	2.50	2.58	$2.54	3.1%	6	0.43	2.8K

PUTS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$35.00	Aug 21	7.05	7.30	$7.18	3.5%	3	0.64	3.1K
$30.00	Jul 24	1.36	1.42	$1.39	4.3%	63	0.52	1.0K
$34.00	Aug 21	6.25	6.55	$6.40	4.7%	8	0.61	2.7K
$33.00	Aug 21	5.55	5.85	$5.70	5.3%	--	0.57	1.9K
$24.00	Aug 21	1.23	1.30	$1.27	5.5%	260	0.20	4.8K

Affordable options under $1.00 per contract. Great for defined-risk strategies with minimal capital. 25 found (avg $0.52, cheapest $0.06)

CALLS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$35.50	Jul 24	0.12	0.14	$0.13	15.4%	47	0.08	29
$35.00	Jul 24	0.16	0.17	$0.17	5.9%	636	0.10	2.0K
$34.00	Jul 24	0.21	0.25	$0.23	17.4%	156	0.14	1.5K
$33.00	Jul 24	0.32	0.35	$0.34	8.8%	209	0.19	3.9K
$32.50	Jul 24	0.39	0.46	$0.43	16.3%	84	0.23	738

PUTS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$24.50	Jul 24	0.05	0.06	$0.06	16.7%	76	0.04	1.3K
$26.00	Jul 24	0.15	0.16	$0.16	6.3%	131	0.10	1.2K
$26.50	Jul 24	0.18	0.21	$0.20	15.0%	165	0.13	555
$24.00	Jul 31	0.23	0.27	$0.25	16.0%	111	0.09	2.5K
$25.00	Jul 31	0.35	0.41	$0.38	15.8%	262	0.14	1.9K

In-the-money options with delta >0.50. Higher probability of profit, lower leverage. 107 found (avg delta 0.69, highest 1.00)

CALLS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$24.00	Jul 24	5.50	5.90	$5.70	7.0%	24	1.00	912
$24.50	Jul 24	5.05	5.30	$5.18	4.8%	80	0.94	1.2K
$25.00	Jul 24	4.70	4.85	$4.78	3.1%	1.2K	0.93	12.1K
$25.50	Jul 24	4.15	4.40	$4.28	5.8%	319	0.92	1.3K
$26.00	Jul 24	3.70	4.00	$3.85	7.8%	286	0.90	15.2K

PUTS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$35.00	Jul 24	5.25	6.40	$5.83	19.7%	370	0.90	644
$34.00	Jul 24	4.35	4.75	$4.55	8.8%	--	0.86	336
$33.50	Jul 24	3.85	4.95	$4.40	25.0%	--	0.84	322
$35.50	Jul 31	5.70	7.20	$6.45	23.3%	--	0.84	13
$35.00	Jul 31	5.40	6.80	$6.10	23.0%	370	0.81	85

Most actively traded options today. High liquidity = easy entry/exit. 174 active (total vol 47.5K, top 7.2K)

CALLS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$28.00	Jul 24	2.20	2.30	$2.25	4.4%	7.2K	0.73	24.7K
$28.50	Jul 24	1.86	1.95	$1.91	4.7%	6.1K	0.67	29.3K
$30.00	Jul 24	1.07	1.11	$1.09	3.7%	5.3K	0.48	8.9K
$32.00	Jul 24	0.48	0.50	$0.49	4.1%	3.0K	0.26	5.3K
$29.00	Jul 24	1.54	1.60	$1.57	3.8%	2.5K	0.61	9.9K

PUTS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$25.00	Jul 24	0.07	0.10	$0.09	33.3%	406	0.06	2.3K
$35.00	Jul 24	5.25	6.40	$5.83	19.7%	370	0.90	644
$35.00	Jul 31	5.40	6.80	$6.10	23.0%	370	0.81	85
$27.50	Jul 24	0.37	0.45	$0.41	19.5%	313	0.22	416
$27.00	Jul 24	0.27	0.34	$0.31	22.6%	291	0.17	979

Term structure inversion — near-term IV higher than far-term IV at the same strike. Signals expected near-term catalyst or volatility event. 46 strikes (avg 31.8%, max 54.9%)

CALLS (5)

Strike	Near Exp	Far Exp	Near IV	Far IV	Back%	Vol	OI
$35.50	Jul 24	Aug 7	155.7%	100.5%	54.9%	59	1.3K
$34.50	Jul 24	Aug 7	149.4%	101.9%	46.6%	93	440
$35.00	Jul 24	Aug 28	152.9%	105.9%	44.4%	640	2.4K
$33.50	Jul 24	Aug 7	144.5%	100.5%	43.8%	125	574
$32.50	Jul 24	Aug 7	142.0%	99.8%	42.3%	208	858

PUTS (5)

Strike	Near Exp	Far Exp	Near IV	Far IV	Back%	Vol	OI
$33.50	Jul 24	Aug 7	144.5%	100.3%	44.1%	--	342
$32.50	Jul 24	Aug 7	142.0%	100.1%	41.9%	21	242
$24.00	Jul 24	Aug 28	149.5%	105.8%	41.4%	152	3.2K
$34.00	Jul 24	Aug 28	149.3%	105.9%	41.0%	--	355
$35.00	Jul 24	Aug 21	153.4%	111.1%	38.1%	373	3.7K

Bull call spreads & bear put spreads with the best risk/reward ratios. Pay a debit upfront, defined max loss. 136 found (best R:R 4.56, avg 1.56)

BULL CALL (5)

Buy	Sell	Expiry	Debit	Max Gain	Max Loss	R:R	BE
$34.00	$35.00	Aug 14	$0.18	$0.82	$0.18	4.56	$34.18
$31.00	$31.50	Jul 24	$0.11	$0.39	$0.11	3.55	$31.11
$34.00	$34.50	Jul 31	$0.11	$0.39	$0.11	3.55	$34.11
$32.50	$33.00	Aug 7	$0.11	$0.39	$0.11	3.55	$32.61
$34.00	$35.00	Aug 21	$0.23	$0.77	$0.23	3.35	$34.23

BEAR PUT (5)

Buy	Sell	Expiry	Debit	Max Gain	Max Loss	R:R	BE
$27.00	$26.50	Jul 24	$0.11	$0.39	$0.11	3.55	$26.89
$26.00	$25.50	Jul 31	$0.11	$0.39	$0.11	3.55	$25.89
$26.50	$26.00	Jul 31	$0.11	$0.39	$0.11	3.55	$26.39
$25.00	$24.50	Aug 7	$0.11	$0.39	$0.11	3.55	$24.89
$28.00	$27.50	Jul 24	$0.12	$0.38	$0.12	3.17	$27.88

Bear call spreads & bull put spreads collecting premium. Receive credit upfront, profit if stock stays in range. 167 found (best R:R 4.00, avg 1.26)

BEAR CALL (5)

Sell	Buy	Expiry	Credit	Max Gain	Max Loss	R:R	BE
$24.50	$25.00	Jul 24	$0.40	$0.40	$0.10	4.00	$24.90
$26.00	$26.50	Jul 31	$0.40	$0.40	$0.10	4.00	$26.40
$24.00	$25.00	Aug 14	$0.79	$0.79	$0.21	3.76	$24.79
$27.00	$27.50	Jul 24	$0.39	$0.39	$0.11	3.55	$27.39
$26.00	$26.50	Aug 7	$0.39	$0.39	$0.11	3.55	$26.39

BULL PUT (5)

Sell	Buy	Expiry	Credit	Max Gain	Max Loss	R:R	BE
$33.50	$33.00	Aug 7	$0.40	$0.40	$0.10	4.00	$33.10
$34.00	$33.00	Aug 14	$0.80	$0.80	$0.20	4.00	$33.20
$35.00	$34.00	Aug 21	$0.78	$0.78	$0.22	3.55	$34.22
$31.50	$31.00	Jul 24	$0.38	$0.38	$0.12	3.17	$31.12
$32.00	$31.50	Jul 24	$0.38	$0.38	$0.12	3.17	$31.62

Same strike, different expirations. Sell near-term, buy far-term. Profits from time decay differential. 45 found (avg debit $0.49, cheapest $0.15)

CALLS (5)

Strike	Near Exp	Far Exp	Net Debit	Near IV	Far IV
$24.50	Jul 24	Jul 31	$0.27	142.7%	108.5%
$35.50	Jul 24	Jul 31	$0.27	155.7%	105.9%
$25.00	Jul 24	Jul 31	$0.30	142.5%	106.7%
$35.00	Jul 24	Jul 31	$0.31	152.9%	106.5%
$34.50	Jul 24	Jul 31	$0.34	149.4%	104.1%

PUTS (5)

Strike	Near Exp	Far Exp	Net Debit	Near IV	Far IV
$33.50	Jul 24	Jul 31	$0.15	144.5%	103.3%
$24.00	Jul 24	Jul 31	$0.20	149.5%	107.8%
$24.50	Jul 24	Jul 31	$0.26	142.7%	108.5%
$35.00	Jul 24	Jul 31	$0.27	153.4%	106.5%
$25.00	Jul 24	Jul 31	$0.29	142.5%	106.7%

Buy call + put at the same strike and expiry. Profits from large moves in either direction. 105 found (cheapest 8.25% of stock, avg 19.66%)

Strike	Expiry	Call$	Put$	Total	BE Low	BE High	Cost%
$29.00	Jul 24	$1.57	$0.88	$2.45	$26.55	$31.45	8.25%
$29.50	Jul 24	$1.33	$1.13	$2.46	$27.04	$31.96	8.29%
$30.00	Jul 24	$1.09	$1.39	$2.48	$27.52	$32.48	8.35%
$28.50	Jul 24	$1.91	$0.67	$2.58	$25.92	$31.08	8.69%
$30.50	Jul 24	$0.90	$1.69	$2.59	$27.91	$33.09	8.72%
$31.00	Jul 24	$0.73	$2.02	$2.75	$28.25	$33.75	9.26%
$28.00	Jul 24	$2.25	$0.53	$2.78	$25.22	$30.78	9.36%
$31.50	Jul 24	$0.62	$2.40	$3.02	$28.48	$34.52	10.17%
$27.50	Jul 24	$2.62	$0.41	$3.03	$24.47	$30.53	10.21%
$32.00	Jul 24	$0.49	$2.78	$3.27	$28.73	$35.27	11.01%

Buy OTM call + OTM put at different strikes. Cheaper than straddles, needs bigger move to profit. 135 found (cheapest 3.03% of stock, avg 13.27%)

Call K	Put K	Expiry	Call$	Put$	Total	BE Low	BE High
$32.00	$27.50	Jul 24	$0.49	$0.41	$0.90	$26.60	$32.90
$32.00	$28.00	Jul 24	$0.49	$0.53	$1.02	$26.98	$33.02
$31.50	$27.50	Jul 24	$0.62	$0.41	$1.03	$26.47	$32.53
$31.00	$27.50	Jul 24	$0.73	$0.41	$1.14	$26.36	$32.14
$31.50	$28.00	Jul 24	$0.62	$0.53	$1.15	$26.85	$32.65
$32.00	$28.50	Jul 24	$0.49	$0.67	$1.16	$27.34	$33.16
$31.00	$28.00	Jul 24	$0.73	$0.53	$1.26	$26.74	$32.26
$31.50	$28.50	Jul 24	$0.62	$0.67	$1.29	$27.21	$32.79
$30.50	$27.50	Jul 24	$0.90	$0.41	$1.31	$26.19	$31.81
$32.00	$29.00	Jul 24	$0.49	$0.88	$1.37	$27.63	$33.37

Sell OTM put spread + OTM call spread. Collect premium, profit if stock stays between breakevens. 81 found (best R:R 8.09, avg credit $0.67)

Put Spread	Call Spread	Expiry	Credit	Max Loss	R:R	BE Low	BE High
26/27	29/30	Aug 28	$0.89	$0.11	8.09	$26.11	$29.89
28/29	33/34	Aug 28	$0.89	$0.11	8.09	$28.11	$33.89
31/32	33/34	Aug 14	$0.88	$0.12	7.33	$31.12	$33.88
26/27	29/30	Aug 14	$0.87	$0.13	6.69	$26.13	$29.87
27/28	31/32	Aug 14	$0.87	$0.13	6.69	$27.13	$31.87
27/28	32/33	Aug 14	$0.87	$0.13	6.69	$27.13	$32.87
28/29	31/32	Aug 14	$0.87	$0.13	6.69	$28.13	$31.87
28/29	32/33	Aug 14	$0.87	$0.13	6.69	$28.13	$32.87
27/28	33/34	Aug 28	$0.86	$0.14	6.14	$27.14	$33.86
29/30	33/34	Aug 28	$0.86	$0.14	6.14	$29.14	$33.86

Buy lower + upper strikes, sell 2x middle strike. Low cost, max profit at the middle strike at expiry. 55 found (best R:R 21.22, cheapest $0.05)

CALLS (5)

Low	Mid	High	Expiry	Debit	Max Gain	R:R
$33.00	$34.00	$35.00	Aug 14	$0.07	$0.93	13.29
$25.00	$26.00	$27.00	Aug 14	$0.08	$0.92	11.50
$25.50	$26.00	$26.50	Jul 31	$0.05	$0.45	9.00
$29.00	$29.50	$30.00	Jul 31	$0.05	$0.45	9.00
$33.00	$34.00	$35.00	Aug 21	$0.11	$0.89	8.09

PUTS (5)

Low	Mid	High	Expiry	Debit	Max Gain	R:R
$30.00	$32.00	$34.00	Aug 28	$0.09	$1.91	21.22
$29.00	$30.00	$31.00	Aug 14	$0.05	$0.95	19.00
$30.00	$31.00	$32.00	Aug 14	$0.06	$0.94	15.67
$25.00	$26.00	$27.00	Aug 28	$0.06	$0.94	15.67
$26.00	$27.00	$28.00	Aug 28	$0.06	$0.94	15.67

Buy 1 option, sell 2 at a different strike (1:2 ratio). Can be entered for a credit. Unlimited risk on naked leg. 27 found (best net $-0.06, 27 credits)

CALLS (5)

Buy K	Sell K	Ratio	Expiry	Net	Max Gain
$35.00	$35.50	1:2	Jul 24	-$0.09	$0.41
$34.00	$34.50	1:2	Jul 24	-$0.13	$0.37
$34.50	$35.00	1:2	Jul 24	-$0.16	$0.34
$33.50	$34.00	1:2	Jul 24	-$0.19	$0.31
$33.00	$33.50	1:2	Jul 24	-$0.20	$0.30

PUTS (5)

Buy K	Sell K	Ratio	Expiry	Net	Max Gain
$26.00	$25.50	1:2	Jul 24	-$0.06	$0.44
$25.50	$25.00	1:2	Jul 24	-$0.07	$0.43
$27.00	$26.50	1:2	Jul 24	-$0.09	$0.41
$26.50	$26.00	1:2	Jul 24	-$0.12	$0.38
$24.50	$24.00	1:2	Jul 31	-$0.18	$0.32

Sell OTM calls against 100 shares you own. Collect premium for income, capped upside at strike. Yield% = premium/stock price. 54 found (best yield 12.13%, avg 4.83%)

Strike	Expiry	Bid	Delta	OTM%	Yield%	If Called%	Vol	OI
$30.00	Aug 21	$3.60	0.55	1.0%	12.13%	13.17%	1.2K	13.8K
$30.00	Aug 28	$3.50	0.55	1.0%	11.79%	12.83%	59	579
$30.00	Aug 14	$3.20	0.54	1.0%	10.78%	11.82%	64	1.7K
$31.00	Aug 21	$3.05	0.51	4.4%	10.27%	14.69%	170	25.3K
$31.00	Aug 28	$3.05	0.51	4.4%	10.27%	14.69%	11	90
$31.00	Aug 14	$2.80	0.50	4.4%	9.43%	13.84%	20	325
$32.00	Aug 21	$2.77	0.47	7.8%	9.33%	17.11%	87	6.1K
$32.00	Aug 28	$2.71	0.47	7.8%	9.13%	16.91%	23	270
$33.00	Aug 28	$2.61	0.44	11.2%	8.79%	19.94%	1	171
$32.00	Aug 14	$2.50	0.46	7.8%	8.42%	16.20%	24	494

Current 5-Minute Volume Snapshots

Time (HH:MM)	Total Volume	Call Volume	Put Volume	Volume Change
Loading data...

Prior's 5-Minute Volume Snapshots

Time (HH:MM)	Total Volume	Call Volume	Put Volume	Volume Change
Loading data...

Current Put/Call Breakdown

Total Calls 50,700

Total Puts 7,073

Put/Call Ratio 0.14

Net Difference 43,627

Prior's Put/Call Breakdown

Total Calls 3,776

Total Puts 2,965

Put/Call Ratio 0.79

Net Difference 811

Prior 7-Day Put/Call Summary

Total Calls 375,131

Total Puts 154,888

Average Put/Call Ratio 0.64

Ratio Trend Falling

Daily Put/Call History (Last 7 Days)

Date	Calls	Puts	Ratio	Net Diff
Loading data...

Upcoming Earnings - 2 Weeks Prior

Loading earnings data...

Upcoming Earnings - 1 Week Prior

Loading earnings data...

Earnings This Week

Loading earnings data...

Earnings - Day Before / Day After

Loading earnings data...

Options Activity Around Earnings

Ticker	Earnings Date	Days Away	Call Volume	Put Volume	IV Rank
Loading data...

Option Volume

Dollar Volume

Put/Call Ratio

Open Interest

Expected Move

Relative Spread

🤖 AI Insights

📈 Options Analysis

Current 5-Minute Volume Snapshots

Prior's 5-Minute Volume Snapshots

Current Put/Call Breakdown

Prior's Put/Call Breakdown

Prior 7-Day Put/Call Summary

Daily Put/Call History (Last 7 Days)

Upcoming Earnings - 2 Weeks Prior

Upcoming Earnings - 1 Week Prior

Earnings This Week

Earnings - Day Before / Day After

Options Activity Around Earnings

Chart Title

Price — Past 7 Days

Add Card