Laser Focus World is an industry bedrock—first published in 1965 and still going strong. We publish original articles about cutting-edge advances in lasers, optics, photonics, sensors, and quantum technologies, as well as test and measurement, and the shift currently underway to usher in the photonic integrated circuits, optical interconnects, and copackaged electronics and photonics to deliver the speed and efficiency essential for data centers of the future.

Our 80,000 qualified print subscribers—and 130,000 12-month engaged online audience—trust us to dive in and provide original journalism you won’t find elsewhere covering key emerging areas such as laser-driven inertial confinement fusion, lasers in space, integrated photonics, chipscale lasers, LiDAR, metasurfaces, high-energy laser weaponry, photonic crystals, and quantum computing/sensors/communications. We cover the innovations driving these markets.

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Following the Photons: A Photonics Podcast dives deep into the fascinating world of photonics. Our weekly episodes feature interviews and discussions with industry and research experts, providing valuable perspectives on the issues, technologies, and trends shaping the photonics community.

Editorial Advisory Board

  • Professor Andrea M. Armani, University of Southern California
  • Ruti Ben-Shlomi, Ph.D., LightSolver
  • James Butler, Ph.D., Hamamatsu
  • Natalie Fardian-Melamed, Ph.D., Columbia University
  • Justin Sigley, Ph.D., AmeriCOM
  • Professor Birgit Stiller, Max Planck Institute for the Science of Light, and Leibniz University of Hannover
  • Professor Stephen Sweeney, University of Glasgow
  • Mohan Wang, Ph.D., University of Oxford
  • Professor Xuchen Wang, Harbin Engineering University
  • Professor Stefan Witte, Delft University of Technology

Transdigm Group Incorporated Common Stock (NY:TDG)

1,288.83 +5.02 (+0.39%)
Official Closing Price Updated: 7:00 PM EDT, Oct 3, 2025 Add to My Watchlist

Historical Prices

Date Open High Low Close Volume Change (%)
Oct 03, 2025 1280 1293 1278 1289 258,168 +5.02(+0.39%)
Oct 02, 2025 1296 1305 1277 1284 278,012 -16.99(-1.31%)
Oct 01, 2025 1305 1333 1298 1301 335,874 -17.22(-1.31%)
Sep 30, 2025 1291 1323 1285 1318 336,756 +28.73(+2.23%)
Sep 29, 2025 1299 1308 1281 1289 196,592 -6.43(-0.50%)
Sep 26, 2025 1299 1303 1291 1296 198,077 +5.72(+0.44%)
Sep 25, 2025 1297 1297 1269 1290 307,943 -10.00(-0.77%)
Sep 24, 2025 1299 1320 1298 1300 227,077 +0.63(+0.05%)
Sep 23, 2025 1293 1305 1291 1299 241,238 +4.08(+0.31%)
Sep 22, 2025 1276 1296 1271 1295 253,371 +12.83(+1.00%)
Sep 19, 2025 1292 1298 1274 1282 520,230 -3.66(-0.28%)
Sep 18, 2025 1278 1290 1272 1286 267,943 +10.16(+0.80%)
Sep 17, 2025 1273 1293 1265 1276 259,400 -5.77(-0.45%)
Sep 16, 2025 1302 1304 1280 1282 260,221 -6.40(-0.50%)
Sep 15, 2025 1276 1300 1274 1288 315,411 +16.68(+1.31%)
Sep 12, 2025 1294 1304 1269 1271 395,971 -21.85(-1.69%)
Sep 11, 2025 1290 1303 1284 1293 433,332 +5.98(+0.46%)
Sep 10, 2025 1314 1325 1275 1287 447,960 -24.77(-1.89%)
Sep 09, 2025 1289 1315 1278 1312 689,741 +18.85(+1.46%)
Sep 08, 2025 1252 1295 1244 1293 630,477 +22.20(+1.75%)
Sep 05, 2025 1284 1285 1260 1271 489,996 -10.77(-0.84%)
Sep 04, 2025 1283 1283 1263 1282 442,870 +3.33(+0.26%)
Sep 03, 2025 1304 1305 1275 1278 338,768 -26.40(-2.02%)
Sep 02, 2025 1305 1317 1289 1305 434,666 -4.00(-0.31%)
Aug 29, 2025 1311 1312 1303 1309 333,537 +0.77(+0.06%)
Aug 28, 2025 1307 1322 1298 1308 456,325 +2.82(+0.22%)
Aug 27, 2025 1322 1336 1305 1305 268,036 -17.12(-1.29%)
Aug 26, 2025 1304 1323 1303 1322 285,353 +21.86(+1.68%)
Aug 25, 2025 1318 1329 1297 1301 194,000 -17.29(-1.31%)
Aug 22, 2025 1311 1324 1308 1318 268,422 +14.33(+1.10%)
Aug 21, 2025 1310 1325 1298 1304 294,529 -8.44(-0.64%)
Aug 20, 2025 1320 1327 1299 1312 423,197 +4.10(+0.31%)
Aug 19, 2025 1294 1314 1294 1308 547,072 +7.15(+0.55%)
Aug 18, 2025 1299 1314 1294 1301 433,316 +2.11(+0.16%)
Aug 15, 2025 1321 1321 1296 1299 530,510 -23.25(-1.76%)
Aug 14, 2025 1345 1345 1318 1322 234,879 -12.24(-0.92%)
Aug 13, 2025 1322 1336 1312 1334 424,825 +14.14(+1.07%)
Aug 12, 2025 1322 1331 1300 1320 331,345 +1.08(+0.08%)
Aug 11, 2025 1307 1333 1295 1319 391,105 +18.50(+1.42%)
Aug 08, 2025 1343 1344 1299 1300 462,799 -36.84(-2.76%)
Aug 07, 2025 1312 1338 1296 1337 494,105 +26.13(+1.99%)
Aug 06, 2025 1344 1344 1282 1311 945,669 -14.71(-1.11%)
Aug 05, 2025 1361 1372 1293 1326 1,624,017 -179.68(-11.94%)
Aug 04, 2025 1487 1513 1487 1505 375,655 +22.43(+1.51%)
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