OSI Systems, Inc OSIS

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OSI Systems, Inc. - Common Stock · Company · Nasdaq · Technology / Electronic Components

Paper trade (simulated — no real money)

Fill: USD 197.4800 · FX 1 USD = 1.277900 SGD · about SGD 252.3597 per unit

Sign in to practise with simulated trades before investing real money. 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 251.11 → 197.48 · -21.4%
309.680250.990192.300 1,2 3 4 5 6 7,8 9,10 11 12 Oct 25Jan 26Apr 26Jul 26Oct 26

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

Price & SEC Filing History 24 Oct 2025 — 25 Oct 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.

Weekend
Weekend
201.0000 202.5500 197.3200 197.4800 174,854
196.1200 200.6100 195.2000 200.4900 130,500
196.2400 198.7900 195.6200 196.9300 184,000
194.0400 196.4200 192.2400 194.8600 161,000
195.0000 196.0000 192.0100 193.9700 161,900
Weekend
Weekend
196.2100 196.2100 192.9600 194.9800 202,900
192.9900 197.4200 190.9400 196.2100 135,100
192.1100 194.1300 190.2100 192.6800 180,900
195.5400 197.7000 194.0500 194.7000 176,700
195.4900 196.9600 193.3600 195.3200 171,800
Weekend
Weekend
193.7200 195.5200 190.0700 194.9100 134,800
192.7500 196.5200 191.0900 193.3600 158,800
195.5300 197.4100 191.0900 194.0500 224,300
199.5500 199.5500 196.4300 198.5600 122,700
197.7300 199.5300 194.2400 197.8700 198,900
Weekend
Weekend
199.4000 199.4000 195.9000 196.7800 149,400
195.0000 199.3900 190.2400 196.6200 174,900
193.4000 196.0200 190.7700 194.3700 208,300
192.8600 193.0200 190.4400 192.3000 174,300
197.6200 197.6200 192.2900 193.0400 123,300
Weekend
Weekend
202.4800 202.9300 195.3700 197.2400 197,200
202.0000 205.1500 200.1500 201.3000 134,300
200.8300 203.7800 198.9300 203.0000 213,300
203.1800 203.4500 199.2300 200.8400 183,900
199.2000 202.0600 196.4300 200.4000 162,900
Weekend
Weekend
200.4600 202.6700 197.0600 197.7100 395,500
206.0600 206.0600 198.1400 200.3500 205,400
205.6300 206.3800 200.2000 201.7500 270,700
198.2600 202.8000 195.3200 202.5900 282,600
202.0600 203.8400 199.3700 199.9500 225,200
Weekend
Weekend
203.1100 205.4400 200.8300 204.2900 236,100
196.0500 202.2100 195.6900 201.2500 267,800
202.7500 205.7700 195.7600 197.4900 381,500
203.6400 207.2600 201.0000 204.2500 333,000
No trading
Weekend
Weekend
206.2300 207.4900 201.4300 204.1500 204,900
207.9300 207.9300 201.1000 206.6200 284,300
208.5200 210.8000 206.1100 206.7500 199,200
207.9300 210.4700 204.8300 208.5200 192,300
207.1600 210.6200 205.2200 207.9100 248,200
Weekend
Weekend
210.2700 212.2100 205.7000 206.6400 215,100
211.3100 213.0000 207.7900 210.8900 313,400
203.9200 211.4300 203.6700 211.0400 347,900
207.1100 208.9900 202.8500 204.0700 485,400
206.4400 209.9900 202.0000 204.0500 857,500
Weekend
Weekend
12 · 10-K After-hours · 17:28 ET 10-K ↗
196.0000 207.8200 186.5000 206.7300 1,289,800
11 · 8-K After-hours · 16:02 ET FORM 8-K ↗
219.3200 221.4000 214.1700 218.0900 381,300
221.0000 223.7300 217.9700 220.9200 163,500
226.4700 226.6500 218.5200 218.7300 162,600
232.2100 234.7300 226.5900 229.8700 125,500
Weekend
Weekend
228.5600 232.9100 226.9800 228.2700 132,300
234.3500 236.8300 226.9500 228.5600 149,300
236.8000 236.8000 228.5500 231.5700 196,500
235.0900 236.9200 231.5000 233.2000 170,500
236.0600 239.0700 231.6200 232.6100 210,700
Weekend
Weekend
238.7700 239.0000 234.2600 236.2300 93,900
236.2600 240.9000 233.7000 237.1000 96,600
236.2400 237.2500 233.5200 235.0900 133,400
228.8200 237.4600 225.3000 236.6000 159,000
222.3700 227.1300 221.0400 225.5700 206,000
Weekend
Weekend
222.0700 223.9000 218.6200 221.3900 198,800
215.9600 220.3800 212.0800 219.9200 107,400
219.2700 224.0300 213.5500 214.0200 142,400
217.3000 222.5700 217.3000 220.6400 128,400
217.9500 220.3400 213.0800 217.3000 134,700
Weekend
Weekend
214.5500 218.2300 210.4000 216.7000 181,200
208.0000 214.6800 205.8700 214.3900 187,400
210.1400 212.2300 208.2900 209.7900 141,900
211.9200 213.0000 208.0200 210.2500 238,200
212.6600 215.9300 209.9000 210.4800 230,200
Weekend
Weekend
213.3500 218.0100 210.0000 212.6600 217,200
217.3000 223.3300 213.0600 216.2200 131,000
211.6900 218.7600 211.0100 218.2900 134,800
214.9400 220.2000 211.0500 211.0700 161,800
214.9500 216.2500 211.3000 213.2000 279,900
Weekend
Weekend
218.5400 223.6900 215.9900 216.5100 211,600
217.3500 217.9800 213.1000 216.6500 159,400
218.2200 220.0400 213.2700 217.4200 180,400
219.8900 221.0000 213.8500 218.7200 194,800
222.1300 224.9000 216.2000 220.8300 227,300
Weekend
Weekend
No trading
217.0000 221.9300 213.8700 221.7600 172,900
218.3900 223.0700 214.4100 214.9000 234,200
214.7400 221.0000 214.0400 218.7000 284,200
217.5900 219.3400 210.7900 213.2400 241,600
Weekend
Weekend
216.2800 219.7000 212.8800 218.2900 645,600
217.0900 220.1800 213.0300 218.9300 244,200
213.9500 219.1100 212.3000 213.7200 340,700
217.3100 220.5900 213.3200 215.6600 152,600
221.3000 228.0000 219.0600 219.2600 165,100
Weekend
Weekend
No trading
222.5100 227.2900 216.2800 222.7800 286,100
222.6900 231.3900 216.6000 217.5100 219,000
222.0500 224.6700 219.0900 220.7000 178,800
229.4800 232.0400 220.1200 221.6800 204,900
Weekend
Weekend
231.0200 233.4400 224.1900 225.5300 304,300
220.2700 232.5400 220.2000 231.0200 317,900
214.9600 223.3500 212.3600 217.9600 428,900
213.7300 218.8600 207.8900 215.3900 267,700
199.7500 211.4600 198.0000 210.4900 346,800
Weekend
Weekend
211.1000 213.5500 197.2700 197.7300 230,000
216.0000 216.0000 210.1300 212.6100 250,900
213.1400 215.2500 211.4400 213.4800 164,900
214.6100 216.1600 211.0000 212.0100 229,800
214.6100 217.3900 212.0300 213.3700 278,200
Weekend
Weekend
221.9500 222.5100 216.5200 216.7500 326,800
217.3000 222.6300 215.0300 221.1600 204,200
221.1600 222.6500 216.0300 217.4800 187,000
222.6200 223.1000 216.3300 220.9700 250,700
No trading
Weekend
Weekend
208.9800 224.8200 208.9800 222.1000 461,600
214.3700 214.3700 203.4500 207.8600 351,000
210.5000 212.4700 208.0600 211.3700 413,000
206.2800 211.9500 206.0800 209.0100 322,100
205.4100 209.1300 204.3300 207.7700 270,100
Weekend
Weekend
211.1800 214.0500 204.9400 205.4000 364,700
222.2300 224.0900 215.0600 215.8600 402,800
229.2400 229.2400 213.8800 218.4900 386,300
230.6400 232.7600 221.4400 227.4100 580,000
230.0000 237.3200 226.5000 231.9200 415,500
Weekend
Weekend
241.1100 242.4700 230.3100 230.8300 321,900
239.9000 244.7700 233.0500 241.1100 568,000
235.0100 240.6000 225.0000 240.2700 477,000
276.8900 276.8900 232.5000 234.7400 1,227,000
10 · 10-Q After-hours · 17:24 ET 10-Q ↗ 9 · 8-K After-hours · 16:01 ET FORM 8-K ↗
280.4200 286.4900 274.3200 282.8700 237,300
Weekend
Weekend
287.8000 289.4000 279.4300 282.5000 232,100
284.7100 287.6200 279.6100 286.9200 297,800
287.7100 293.5200 279.9800 281.8400 194,300
290.9400 292.2100 281.8900 287.3000 242,200
292.6100 295.5000 284.1500 291.3400 221,800
Weekend
Weekend
285.8700 295.3600 284.6900 292.6100 259,600
295.6200 308.5600 285.9700 286.3500 390,000
300.3900 304.2200 290.2800 292.5200 226,200
309.0800 311.7200 293.5600 296.8400 247,000
307.2800 310.4300 302.2800 309.1900 269,700
Weekend
Weekend
306.4700 311.2700 304.2700 309.6800 190,900
305.8800 307.1600 299.8500 301.0800 175,100
301.8700 309.7300 301.0000 305.9000 248,000
298.1100 300.7200 296.7000 296.8600 131,500
293.6600 300.3100 290.8700 297.4500 190,900
Weekend
Weekend
296.1900 297.2200 292.4800 293.3900 131,000
288.8000 295.9800 288.8000 294.4800 182,500
283.6000 293.2300 283.6000 288.4700 236,800
272.9900 275.7100 266.8400 275.5500 201,700
268.6900 275.5900 268.6900 274.3300 206,300
Weekend
Weekend
No trading
258.6500 272.5900 255.1200 268.1100 260,400
269.0200 271.8800 262.1500 263.5800 369,900
265.9500 270.5500 261.5000 265.5100 389,100
278.3300 278.3300 263.9600 264.7100 394,500
Weekend
Weekend
271.8800 278.6500 269.9500 272.3300 288,100
280.8600 284.0000 272.7700 274.7000 227,100
288.1400 288.3000 279.6800 284.5700 166,200
285.7900 289.4900 279.7400 285.2700 308,300
279.3400 295.7000 279.3400 289.1300 591,400
Weekend
Weekend
282.9900 285.0700 270.2000 274.4500 692,800
265.6700 289.8500 265.6700 284.5300 392,100
269.4400 275.2900 264.7000 269.9500 271,200
279.6500 280.1700 262.5900 269.0800 323,200
274.0000 282.2000 272.8900 278.3500 232,000
Weekend
Weekend
277.0200 278.0000 265.8500 270.9200 172,500
278.3500 279.9300 272.0800 275.5000 366,200
276.3000 279.9700 267.2900 279.4700 188,100
283.9000 287.0000 276.2600 279.0100 284,400
260.6200 282.8100 256.5500 282.1600 444,400
Weekend
Weekend
267.6000 272.6900 264.0000 267.2800 186,300
283.8000 287.7700 269.7200 274.0300 325,100
287.3300 292.2500 281.4000 288.5800 275,400
279.7800 291.4800 276.0000 286.9000 210,900
282.0100 290.7500 281.4300 286.6700 280,300
Weekend
Weekend
287.1000 288.9300 280.4000 285.2000 144,400
296.8000 304.0700 285.4500 289.9200 150,500
301.6600 302.9900 290.3800 295.2600 210,600
294.4100 306.1200 294.4100 297.8700 299,900
292.1500 295.8900 288.2300 293.6500 325,900
Weekend
Weekend
286.2900 294.8400 281.0300 292.8900 318,300
273.5500 286.0800 271.7800 286.0700 374,000
265.7600 276.0500 264.4700 273.9700 187,400
268.6000 271.9000 262.7600 264.5800 219,300
No trading
Weekend
Weekend
267.9900 273.1200 264.7700 268.6100 139,500
268.7500 275.5500 261.1500 264.9800 184,800
278.2600 279.9300 264.0000 267.2000 204,400
276.6200 277.7400 268.1200 274.1000 191,800
271.7900 278.7500 270.5500 274.7600 177,400
Weekend
Weekend
263.9700 273.6300 263.7700 271.2600 295,400
253.2800 262.1400 249.9200 258.1600 388,400
259.6000 267.0700 252.2900 253.1000 332,400
253.9400 257.6200 248.9400 255.9900 238,800
247.1500 256.6500 243.4200 252.7200 455,100
Weekend
Weekend
264.3400 278.1300 248.1700 250.1400 653,400
8 · 10-Q After-hours · 17:25 ET 10-Q ↗ 7 · 8-K After-hours · 16:04 ET FORM 8-K ↗
271.9500 281.0000 266.3100 269.7400 350,100
279.1400 282.0200 269.5100 271.3900 315,900
276.3200 277.9000 273.0900 276.9700 143,400
276.8500 283.5700 271.5700 274.9900 314,700
Weekend
Weekend
287.0300 293.2400 272.4900 274.9900 251,400
289.7000 293.9300 281.9700 287.4600 256,800
291.1700 294.9300 284.4600 289.6800 236,000
285.5500 291.9600 278.6100 288.0000 128,000
No trading
Weekend
Weekend
290.8900 293.4300 287.9700 291.9900 161,100
288.0800 293.2200 284.9600 290.8000 139,700
274.0700 289.4600 272.7400 286.6500 247,100
270.2700 278.1200 270.2700 274.6800 170,700
278.7200 278.7200 268.2400 269.1200 179,700
Weekend
Weekend
279.2900 283.7100 278.4500 278.9200 202,400
273.4900 279.6200 271.3500 279.6100 226,700
284.5200 286.6300 273.2100 274.6900 409,000
269.0700 285.7900 264.8500 284.5700 521,800
257.4700 273.7000 256.8200 271.3800 299,100
Weekend
Weekend
258.0200 260.8400 252.7300 255.5800 291,100
No trading
262.7200 264.1300 254.6300 255.0600 253,600
268.6400 272.8300 261.3200 262.9500 358,300
270.4900 277.0300 263.5500 270.1600 253,100
Weekend
Weekend
268.4600 270.7400 267.6800 269.8200 63,100
No trading
269.1000 270.5100 266.4700 269.6800 73,200
274.5500 276.8800 266.0200 266.9100 227,000
266.8500 277.4700 266.8500 275.1900 247,600
Weekend
Weekend
265.5400 273.2500 262.1900 264.5300 422,900
265.4700 270.8800 264.2100 266.9800 304,400
262.8400 266.3700 259.1800 262.3400 252,500
264.1000 264.3800 260.7700 262.6500 207,500
262.3000 262.9300 258.2600 262.3800 144,500
Weekend
Weekend
264.8100 264.8100 257.6200 259.4400 161,800
6 · 8-K After market open · 15:51 ET FORM 8-K ↗
264.5600 266.7300 259.6200 265.8500 161,500
259.5700 264.5400 257.4100 262.4000 183,800
263.3700 266.3300 260.0700 260.3200 253,400
269.0500 269.0500 261.5600 262.6100 191,400
Weekend
Weekend
270.6300 272.0500 263.3900 266.0000 188,900
272.8300 275.3400 270.0600 271.0100 204,100
266.1500 275.6500 264.7800 273.1900 260,500
270.0000 271.3800 266.0300 266.1700 158,600
268.9400 274.7000 266.1900 268.3900 278,700
Weekend
Weekend
273.4600 274.6800 268.0500 270.8500 181,800
No trading
266.9100 275.5000 266.9100 271.5600 311,100
258.1200 269.1500 253.3100 267.3200 379,900
251.2900 258.2500 250.0000 256.3400 240,700
Weekend
Weekend
233.7400 254.3700 233.7400 251.1000 361,800
5 · 8-K After-hours · 16:48 ET FORM 8-K ↗
243.4300 248.3200 231.6600 233.9700 602,000
250.7900 259.9500 236.4100 237.8200 405,400
267.4700 269.0000 250.0800 251.2600 1,511,300
4 · 8-K Pre-market · 09:08 ET FORM 8-K ↗
257.5600 268.5500 257.5600 267.0300 423,700
3 · 8-K Pre-market · 07:45 ET FORM 8-K ↗
Weekend
Weekend
270.1400 276.3800 262.4500 273.5500 183,500
280.6600 283.2800 268.2900 272.8700 205,800
287.3300 292.3400 282.2000 283.4800 232,300
283.3700 288.3300 282.9000 286.9600 226,700
286.1000 288.1000 283.1500 285.5300 175,300
Weekend
Weekend
279.6000 288.6400 276.7500 284.8600 245,100
278.9200 285.0000 274.6100 282.2700 213,200
280.3600 283.2300 274.0600 281.6300 109,000
274.9200 282.9600 271.4700 277.5400 173,900
278.2800 282.5900 273.3000 281.1000 384,000
Weekend
Weekend
251.5000 282.5400 246.4600 278.4600 644,200
2 · 10-Q After-hours · 17:13 ET 10-Q ↗ 1 · 8-K After-hours · 16:05 ET FORM 8-K ↗
247.0200 249.7000 243.2500 243.8200 137,500
252.9300 256.7800 244.7900 249.3700 140,500
252.9200 254.7700 249.7500 250.9400 129,500
253.0300 255.9800 251.9500 254.0000 126,100
Weekend
Weekend
250.1400 255.3400 249.4400 251.1100 80,600

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.

12 10-K 10-K (opens SEC filing in a new tab) After-hours · 17:28 ET Summarise
11 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:02 ET Summarise
10 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 17:24 ET Summarise
9 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:01 ET Summarise
8 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 17:25 ET Summarise
7 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:04 ET Summarise
6 8-K FORM 8-K (opens SEC filing in a new tab) After market open · 15:51 ET Summarise
5 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:48 ET Summarise
4 8-K FORM 8-K (opens SEC filing in a new tab) Pre-market · 09:08 ET Summarise
3 8-K FORM 8-K (opens SEC filing in a new tab) Pre-market · 07:45 ET Summarise
2 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 17:13 ET Summarise
1 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise