Silicon Motion Technology Corporation - American Depositary Shar SIMO

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Silicon Motion Technology Corporation - American Depositary Shares, each representing four ordinary shares · Company · Nasdaq

Paper trade (simulated — no real money)

Fill: USD 270.9000 · FX 1 USD = 1.288650 SGD · about SGD 349.0953 per unit

Sign in to place simulated trades. USD fills are converted into the SGD portfolio at the displayed rate.

Announcement types: (default: consequential filings)
Results & current reports
Capital markets
Ownership & governance

USD closing-price chart (daily close from yfinance · Last year)

USD 75.79 → 270.90 · 257.4%
336.900205.28073.660 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Jul 25Oct 25Jan 26Apr 26Jul 26

Numbered dotted lines mark the filtered filings under Announcement Events below.

Price & SEC Filing History 26 Jul 2025 — 27 Jul 2026 (Last year)

Daily Nasdaq prices are sourced from yfinance. Yellow highlighting marks an intraday rise or a gap up between adjacent trading sessions. SEC acceptance times are converted to US Eastern time: pre-market filings appear below that day’s OHLCV row; filings accepted after the 09:30 ET open appear above it. The SEC does not publish an exact first-public-availability timestamp, so acceptance time is the best available proxy.

No data yet
Weekend
Weekend
14 · 6-K After-hours · 17:08 ET 6-K ↗
277.3300 283.6600 265.1000 270.9000 666,300
276.0000 294.3400 276.0000 289.0800 887,000
274.6400 291.4100 267.7800 281.6800 466,500
269.9500 278.6900 261.0000 278.1700 493,900
269.7800 271.0900 251.0100 252.6100 889,700
Weekend
Weekend
257.0200 271.0000 245.0000 264.3300 688,200
280.0000 288.2600 264.5000 272.4500 979,300
310.4300 315.0000 282.2200 293.4000 534,100
317.5000 317.5000 304.1100 308.4100 566,500
313.0500 317.3700 296.8000 299.5100 527,200
Weekend
Weekend
315.3600 329.0000 311.8000 326.3500 530,400
324.2100 337.0000 320.0000 324.2600 745,400
13 · 6-K After-hours · 16:02 ET 6-K ↗
293.9600 315.0100 292.0100 313.3000 914,800
298.7300 303.9800 284.4000 294.9000 718,100
313.0000 338.9400 310.0000 318.8600 655,400
Weekend
Weekend
No trading
318.5200 323.2200 286.0900 300.7100 752,800
320.0000 329.5900 316.1600 316.9800 611,500
332.2500 341.0000 328.0000 333.3300 589,800
304.0100 337.1700 294.5000 331.9400 1,470,500
Weekend
Weekend
314.5200 314.5200 294.0000 305.2800 1,116,300
344.7500 349.9900 321.5000 325.2600 773,300
320.7000 324.2500 306.0000 321.6600 831,800
311.0000 322.8100 304.0000 319.0000 847,000
332.0700 355.0000 329.2500 336.9000 1,044,400
Weekend
Weekend
No trading
323.6600 336.3200 316.2600 321.6600 1,523,200
291.8500 316.2800 287.7600 307.1200 1,095,500
276.5300 294.9100 270.3300 282.6800 989,500
293.0000 298.0000 273.9600 276.4000 756,600
Weekend
Weekend
271.7500 286.7200 260.0000 280.4900 730,300
256.4400 274.8000 255.0000 274.3400 592,200
253.1500 263.0900 247.0200 251.6800 583,100
269.4100 272.0800 239.1500 259.7500 857,200
270.1200 274.3200 260.1600 263.2100 790,700
Weekend
Weekend
285.6200 287.0000 256.4900 258.7000 1,471,300
290.0000 302.1400 284.9900 294.6700 888,200
305.0000 314.3400 292.9400 306.5700 1,266,800
273.1700 303.3800 268.1300 301.2700 1,882,700
275.0800 288.6400 265.8000 268.0500 1,402,900
Weekend
Weekend
285.8100 288.8900 268.5300 276.8700 1,143,500
289.5900 294.9900 277.7900 282.4400 931,500
287.9500 287.9500 268.1000 284.9800 848,100
292.1600 294.0000 276.2000 290.3200 1,850,200
No trading
Weekend
Weekend
267.0000 278.5000 263.9900 276.1400 800,100
258.8400 265.1200 252.5100 263.5100 626,400
255.3700 258.3100 246.6000 258.0200 944,000
234.3200 261.3400 230.0500 252.9200 2,053,200
264.1700 267.0000 235.0000 239.7600 1,183,600
Weekend
Weekend
254.1400 265.5000 250.9300 259.9900 771,800
271.7600 273.2500 263.1000 263.8500 794,500
264.9900 273.9000 252.5100 269.8700 875,800
254.3000 259.4900 243.7900 258.7100 1,036,600
256.6200 272.0000 255.4400 262.0500 1,778,200
Weekend
Weekend
251.1800 254.8400 238.5200 253.5900 1,010,800
242.8500 251.7100 236.1100 242.7100 1,180,900
230.3900 245.5000 228.8200 244.9500 1,309,900
231.9600 248.5900 223.0300 238.4100 2,104,400
239.2500 243.8900 222.2000 227.1600 1,253,900
Weekend
Weekend
212.0000 235.0000 210.0000 234.5200 1,412,700
12 · 20-F After-hours · 16:06 ET FORM 20-F ↗
226.5300 229.3200 198.4000 218.7800 1,893,800
195.0000 217.9800 192.8000 217.5000 4,374,100
11 · 6-K Next filing day · accepted 28 Apr, 18:30 ET 6-K ↗
143.5900 152.6600 140.2200 149.1800 1,310,600
155.3100 155.7300 145.1800 147.5400 907,400
Weekend
Weekend
10 · 6-K After-hours · 16:10 ET 6-K ↗
146.9400 153.7900 142.0000 153.4600 748,000
143.9300 147.6000 139.1800 142.0000 589,300
145.0500 146.1500 140.2300 141.9500 377,500
138.6000 143.5000 138.5100 142.4500 530,100
141.7800 141.9300 137.2500 138.7000 441,600
Weekend
Weekend
139.7900 145.8200 137.6300 139.7100 845,800
138.0100 139.0400 133.3500 137.0000 526,000
129.9000 139.5000 128.5100 139.0300 1,137,900
128.0000 130.2200 126.1400 130.1500 790,900
126.0000 126.9800 124.0100 126.0000 445,900
Weekend
Weekend
9 · 6-K After-hours · 16:12 ET 6-K ↗
126.4400 130.6300 126.2900 126.7100 535,000
121.3300 128.5600 120.1600 127.0000 968,500
124.2400 125.9100 120.7000 121.7500 563,900
116.5900 117.8200 114.1100 117.0100 237,300
114.5200 117.5900 114.0900 116.5900 160,300
Weekend
Weekend
No trading
110.6700 115.9900 107.0200 113.9000 273,600
114.2100 118.6100 112.7600 116.9800 493,500
105.6100 113.4500 105.6100 112.2900 301,600
110.5100 110.8200 104.9900 105.4500 640,000
Weekend
Weekend
108.2500 115.0000 108.2500 110.0600 293,700
108.0000 116.3900 107.6000 111.2300 938,500
119.8000 119.9800 110.3900 110.9300 1,102,100
122.0000 124.4000 116.0100 118.6400 699,000
124.3700 129.5000 123.4300 123.7300 486,100
Weekend
Weekend
125.9000 129.5000 121.9500 123.7600 356,500
120.7900 128.2700 120.0000 127.5000 457,600
127.3900 129.8000 125.0300 125.4000 234,700
126.2000 128.8100 124.0000 126.1800 238,700
126.8400 130.0000 124.5600 125.9700 544,100
Weekend
Weekend
121.3500 125.2300 120.8100 123.2600 312,300
120.1900 121.8100 117.0300 120.1100 326,200
122.2800 127.2500 121.6000 123.6400 343,600
123.2900 125.9100 121.7000 122.7800 302,800
115.0000 121.9400 112.6100 121.6300 515,400
Weekend
Weekend
120.0600 122.5200 116.0700 118.3500 338,400
120.8600 125.9300 120.0000 123.7600 379,800
120.9900 124.0000 119.3000 122.3000 538,300
123.2100 124.9800 117.0000 119.4300 852,600
125.4500 131.0000 125.0000 129.1900 696,700
Weekend
Weekend
127.5600 132.0000 126.5000 129.2300 544,600
142.0800 144.2800 129.1900 131.0800 1,021,700
139.5600 146.8500 138.7800 143.0100 676,100
138.2100 140.8700 135.1000 135.8900 364,800
135.0900 138.5000 133.1700 136.1600 443,600
Weekend
Weekend
132.1100 137.9800 132.0000 134.8800 448,700
133.0000 134.6600 129.3500 132.3100 502,700
131.2000 137.4300 129.9200 132.7600 476,000
134.0100 134.0100 126.8000 131.3600 571,800
No trading
Weekend
Weekend
136.5100 137.9600 132.0000 136.2800 511,600
140.4700 144.6800 134.4600 138.3500 707,600
133.9500 140.2800 129.2000 139.9400 880,000
138.0000 138.0000 129.1200 131.3200 658,500
130.8000 137.9400 127.9300 137.5500 1,068,700
Weekend
Weekend
128.1300 133.7800 127.9100 128.0600 453,200
124.9900 130.1300 122.5100 126.1800 855,400
131.0000 133.3400 119.5000 128.3700 2,091,100
8 · 6-K Next filing day · accepted 03 Feb, 19:04 ET 6-K ↗
124.2700 125.9600 112.3300 120.4200 1,154,900
7 · 6-K After-hours · 16:10 ET 6-K ↗
116.5000 123.5400 115.0000 119.7500 839,500
Weekend
Weekend
120.0000 126.2500 117.3800 118.9300 1,062,600
117.1000 117.1000 111.5000 116.1700 537,100
119.8000 121.9500 116.5000 117.1000 680,300
115.6400 118.5900 115.0000 116.2400 570,700
114.0000 117.3400 112.4800 113.1500 342,900
Weekend
Weekend
115.1800 116.5000 111.0000 112.9300 440,000
122.0000 127.6700 112.8600 115.2700 1,051,500
116.6500 123.0000 114.5000 117.8100 950,400
112.0000 117.5000 111.3500 113.0100 453,300
No trading
Weekend
Weekend
115.7200 117.9800 112.5600 112.8700 631,400
115.1500 115.7000 110.2900 113.3800 645,000
113.6300 113.6400 107.2700 111.7400 653,400
116.0000 119.2400 113.0500 113.5600 569,900
113.1200 118.8800 113.0000 115.3200 814,300
Weekend
Weekend
6 · 6-K After-hours · 16:11 ET 6-K ↗
110.6300 115.0000 107.4200 113.1200 728,300
117.7200 123.3000 103.4600 111.0300 1,896,400
105.1600 121.3100 101.3300 121.1300 2,788,400
95.2500 108.0000 94.3500 105.2100 1,329,300
94.9200 96.5900 93.1400 93.5800 200,200
Weekend
Weekend
94.5500 96.0200 92.8000 93.7600 413,900
No trading
90.5200 93.0000 90.4600 92.7000 236,700
89.1300 92.8800 89.1300 90.4600 149,500
89.0000 90.5000 88.3100 89.1300 172,600
Weekend
Weekend
90.0000 90.7300 89.1000 90.2300 153,700
No trading
89.8000 89.8200 87.9800 89.0800 109,100
88.5300 91.1900 88.3200 89.6300 174,400
89.0800 90.2000 88.1900 89.5500 207,800
Weekend
Weekend
86.6300 89.2400 86.6300 88.7500 290,400
87.4500 89.2600 86.3800 86.5600 597,300
85.7400 87.1100 83.3400 84.5400 279,200
86.1400 87.0000 83.5000 85.5000 316,400
88.5900 89.2600 86.8600 87.0700 207,500
Weekend
Weekend
92.4800 92.6000 86.5600 87.7100 612,200
93.8700 94.6600 91.4500 93.2600 267,300
94.5700 96.7700 93.3400 95.7200 165,600
91.7800 94.9800 91.6600 94.5700 162,800
92.9800 93.9800 91.1200 92.8500 283,600
Weekend
Weekend
91.4400 92.2500 90.3900 92.2100 243,600
90.5600 91.8900 90.2200 91.0200 325,300
88.6400 91.6600 87.0000 90.9500 379,300
89.7100 90.3400 87.2300 88.6300 218,100
88.6100 89.5300 86.8900 88.7100 312,000
Weekend
Weekend
87.5800 88.9900 87.5800 88.9600 99,200
No trading
85.9900 88.8000 85.5700 87.5800 301,700
83.8000 84.8700 81.8900 84.7100 377,300
82.4000 84.9800 81.9500 83.8400 326,200
Weekend
Weekend
79.7700 83.8000 79.7700 81.0400 771,500
87.5000 87.5000 79.7600 80.1600 552,600
84.7100 87.7500 83.4100 84.8000 305,000
84.0300 85.8500 82.0000 84.5400 423,600
85.9800 87.4000 84.0600 85.4700 285,100
Weekend
Weekend
83.6500 88.2700 82.7400 86.7400 560,600
90.2800 90.2800 85.7800 86.6000 462,200
94.9400 95.0700 90.6900 91.2600 363,600
94.6400 94.6400 91.7800 93.2100 200,800
96.7100 96.8600 92.9800 94.4500 502,800
Weekend
Weekend
93.0800 94.4500 89.5600 93.7100 339,900
98.8200 99.9500 94.3300 95.3700 471,300
92.3700 99.7600 92.3000 98.7600 788,100
95.1600 97.5500 92.0400 92.2900 477,800
99.3500 100.5000 96.1800 97.6600 590,300
Weekend
Weekend
95.6500 101.0900 93.0000 98.1100 870,500
5 · 6-K Pre-market · 06:01 ET 6-K ↗
101.4400 103.3300 98.5600 99.9600 822,500
102.1700 104.0000 100.0000 100.6000 346,600
102.0000 102.6900 96.8200 100.4500 478,000
4 · 6-K After-hours · 16:12 ET 6-K ↗
105.0000 106.6000 102.2000 102.9700 631,300
Weekend
Weekend
98.0000 100.6800 96.9900 99.1300 353,500
92.1900 95.7800 91.5000 95.0300 131,500
93.8700 95.5000 89.1000 92.1900 300,200
95.7700 95.9900 93.9900 94.1000 213,500
96.0000 97.8500 95.3300 96.1300 178,900
Weekend
Weekend
91.6900 95.4200 91.6300 94.1400 359,000
93.6600 95.0000 91.6900 92.3600 387,700
92.3700 93.5000 90.1900 92.6500 379,900
88.5000 90.8800 87.0000 88.7400 338,300
89.7700 91.1400 88.5200 89.7700 356,600
Weekend
Weekend
94.7500 95.0000 85.0800 85.8000 847,600
94.8600 96.0000 93.2200 94.1700 355,900
94.7300 95.6900 93.7000 93.8600 744,400
3 · 6-K Pre-market · 08:13 ET 6-K ↗
100.0400 100.1200 93.6600 94.4500 441,400
102.0100 102.0100 98.7000 99.9900 622,500
Weekend
Weekend
103.6400 104.9000 98.7700 98.8500 565,900
98.8000 102.4000 97.7200 102.0700 777,900
93.6700 97.6500 93.4300 97.3000 309,800
93.5000 94.8100 92.8200 94.8100 216,800
92.1300 94.5500 92.1300 93.7900 295,300
Weekend
Weekend
90.8600 91.4900 89.0100 90.5900 168,900
90.6600 91.6400 86.6500 90.3100 523,900
91.6300 93.9100 89.0000 92.4400 344,500
95.2200 97.7000 90.0000 91.3500 566,800
92.5200 95.2000 92.5200 95.0600 414,900
Weekend
Weekend
91.8200 92.4900 90.6300 92.3700 350,300
89.7700 92.2500 89.5400 91.3700 464,600
90.0500 90.8300 87.4600 88.4600 328,800
89.9200 91.2000 89.6400 90.2900 258,700
88.7000 90.5500 88.0700 90.0100 191,100
Weekend
Weekend
89.1500 89.8100 87.0000 88.7300 303,800
85.0500 90.5000 85.0400 89.0800 1,014,500
83.9100 85.5000 83.2700 83.7000 165,900
84.3000 84.8500 83.0300 83.9100 246,900
82.1000 85.0000 81.9800 84.8500 249,100
Weekend
Weekend
81.9300 83.4900 80.6100 82.3800 326,900
79.6200 81.1800 78.6600 81.1700 135,800
79.6800 80.5000 77.9100 79.4900 267,000
78.0000 79.9600 77.2200 79.8000 227,900
No trading
Weekend
Weekend
82.2500 83.0000 79.6000 79.6800 329,200
78.7400 82.9900 77.7300 82.7500 427,600
78.4500 79.0600 77.4600 78.5700 100,700
77.7000 79.6400 77.4600 79.0000 218,300
76.2700 78.0400 76.0900 77.6800 153,500
Weekend
Weekend
74.0000 76.4600 73.5800 76.4300 123,000
74.0100 75.2600 73.1900 74.2000 153,000
73.0000 74.1900 71.3500 74.1400 234,300
74.8600 75.3800 72.9500 73.6600 193,800
73.0000 75.3400 72.1500 75.1900 196,200
Weekend
Weekend
74.4500 74.9700 73.3200 73.6700 185,400
75.5100 75.9800 74.9600 75.4800 188,300
77.0000 78.1200 75.2700 76.6400 488,500
75.5800 77.4500 75.5800 77.4000 151,400
76.7000 77.7700 74.7900 75.0400 185,900
Weekend
Weekend
74.0000 77.2300 73.6300 76.3800 257,900
76.9800 76.9800 73.7300 74.5000 245,400
74.0200 76.8800 73.0400 76.5900 268,000
77.2800 77.2800 74.6800 74.7600 427,800
77.2600 78.0000 75.9900 76.5100 311,100
Weekend
Weekend
75.7900 77.1200 73.8600 76.4200 447,200
80.0000 85.1100 75.8500 76.5400 1,387,800
2 · 6-K Next filing day · accepted 30 Jul, 19:08 ET 6-K ↗
77.1300 79.7800 75.5800 76.6400 592,500
76.1000 78.1100 75.6400 77.4300 454,400
1 · 6-K After-hours · 16:11 ET 6-K ↗
73.0000 76.5800 73.0000 75.7900 356,300
Weekend
Weekend

Announcement Events

Each title opens the filing on the SEC website. Registered users can summarise the filing and up to seven relevant exhibits linked within the same SEC submission.

14 6-K 6-K (opens SEC filing in a new tab) After-hours · 17:08 ET Summarise
13 6-K 6-K (opens SEC filing in a new tab) After-hours · 16:02 ET Summarise
12 20-F FORM 20-F (opens SEC filing in a new tab) After-hours · 16:06 ET Summarise
11 6-K 6-K (opens SEC filing in a new tab) Next filing day · accepted 28 Apr, 18:30 ET Summarise
10 6-K 6-K (opens SEC filing in a new tab) After-hours · 16:10 ET Summarise
9 6-K 6-K (opens SEC filing in a new tab) After-hours · 16:12 ET Summarise
8 6-K 6-K (opens SEC filing in a new tab) Next filing day · accepted 03 Feb, 19:04 ET Summarise
7 6-K 6-K (opens SEC filing in a new tab) After-hours · 16:10 ET Summarise
6 6-K 6-K (opens SEC filing in a new tab) After-hours · 16:11 ET Summarise
5 6-K 6-K (opens SEC filing in a new tab) Pre-market · 06:01 ET Summarise
4 6-K 6-K (opens SEC filing in a new tab) After-hours · 16:12 ET Summarise
3 6-K 6-K (opens SEC filing in a new tab) Pre-market · 08:13 ET Summarise
2 6-K 6-K (opens SEC filing in a new tab) Next filing day · accepted 30 Jul, 19:08 ET Summarise
1 6-K 6-K (opens SEC filing in a new tab) After-hours · 16:11 ET Summarise