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Company research · KSTR

Biwin Storage Technology Co., Ltd. Class A

SSE:688525

Computer Peripherals · attribution context sourced from stored price moves, stored event labels, and peer-relative residuals inside the KSTR constituent company universe.

Open overview Open coverage audit Back to ETF companies

Attribution backlog

0high-priority unexplained moves

Market cap17.6B

Last close252.86

1M return-39.62%

Stored moves3

Stored price tapeDaily OHLC candles

-15.78%

Full history and event labels

May 13, 9:30 AM O 298 H 329.9 L 295.63 C 328.49 V 47829148, May 14, 9:30 AM O 328.49 H 343.18 L 323.35 C 323.35 V 44952972, May 15, 9:30 AM O 323.2 H 328.4 L 301.1 C 306.3 V 44496700, May 18, 9:30 AM O 308 H 345 L 308 C 331.1 V 50470114, May 19, 9:30 AM O 322.01 H 324 L 301.01 C 313.43 V 44439874, May 20, 9:30 AM O 312.8 H 319.43 L 309.01 C 316.6 V 30965985, May 21, 9:30 AM O 324.8 H 327.99 L 298.55 C 301 V 36697067, May 22, 9:30 AM O 309 H 314.8 L 301.91 C 312.25 V 30129715, May 25, 9:30 AM O 312 H 322.79 L 303.36 C 320.77 V 36407198, May 26, 9:30 AM O 319 H 319 L 303.12 C 307.73 V 30114700, May 27, 9:30 AM O 323 H 342.48 L 315.17 C 316.99 V 53187408, May 28, 9:30 AM O 311.3 H 330.99 L 306 C 323.62 V 36819883, May 29, 9:30 AM O 326 H 339.88 L 313 C 327.37 V 41590000, Jun 1, 9:30 AM O 331 H 333.99 L 305 C 305 V 33896411, Jun 2, 9:30 AM O 305 H 311.82 L 287.41 C 303.4 V 34769891, Jun 3, 9:30 AM O 300 H 327.8 L 299.95 C 314 V 41282314, Jun 4, 9:30 AM O 312.01 H 350 L 309 C 341.31 V 58137146, Jun 5, 9:30 AM O 327 H 333 L 309.11 C 311 V 48186355, Jun 8, 9:30 AM O 285 H 295.58 L 285 C 288.5 V 32993711, Jun 9, 9:30 AM O 298.17 H 306.33 L 294.78 C 305.15 V 26463951, Jun 10, 9:30 AM O 311 H 331.9 L 308 C 317 V 39267999, Jun 11, 9:30 AM O 314.66 H 326.98 L 308.01 C 324.27 V 30296101, Jun 12, 9:30 AM O 348.88 H 358.86 L 327.9 C 327.9 V 53917677, Jun 15, 9:30 AM O 337 H 340.3 L 322.29 C 339.96 V 41764820, Jun 16, 9:30 AM O 340 H 346.98 L 334.71 C 340.48 V 33989517, Jun 17, 9:30 AM O 332.2 H 370 L 328.75 C 370 V 50471582, Jun 18, 9:30 AM O 363 H 392.2 L 363 C 386.2 V 46314381, Jun 22, 9:30 AM O 394.62 H 406.31 L 386.2 C 406.31 V 42959086, Jun 23, 9:30 AM O 400 H 419.97 L 386 C 389.47 V 38967798, Jun 24, 9:30 AM O 382 H 418.8 L 378.86 C 417 V 37487918, Jun 25, 9:30 AM O 441 H 488 L 438 C 480.3 V 48456799, Jun 26, 9:30 AM O 465.38 H 517 L 465.2 C 501.05 V 46471099, Jun 29, 9:30 AM O 491.54 H 512 L 472.1 C 507 V 39893907, Jun 29, 5:30 PM O 491.54 H 512 L 472.1 C 507 V 39893907, Jun 30, 9:30 AM O 492 H 507.06 L 480 C 494.73 V 29229121, Jun 30, 5:30 PM O 492 H 507.06 L 480 C 494.73 V 29229121, Jul 1, 9:30 AM O 499.1 H 515.65 L 458 C 463.07 V 40923571, Jul 1, 5:30 PM O 499.1 H 515.65 L 458 C 463.07 V 40923571, Jul 2, 9:30 AM O 430 H 447.5 L 417 C 418.8 V 34235678, Jul 2, 5:30 PM O 430 H 447.5 L 417 C 418.8 V 34235678, Jul 3, 9:30 AM O 417 H 446.88 L 401 C 427.91 V 37225005, Jul 3, 5:30 PM O 417 H 446.88 L 401 C 427.91 V 37225005, Jul 6, 9:30 AM O 450 H 466.98 L 428.08 C 454.7 V 43939363, Jul 6, 5:30 PM O 450 H 466.98 L 428.08 C 454.7 V 43939363, Jul 7, 9:30 AM O 432.22 H 439.88 L 416.01 C 425 V 27942899, Jul 7, 5:30 PM O 432.22 H 439.88 L 416.01 C 425 V 27942899, Jul 8, 9:30 AM O 425 H 429.5 L 391.03 C 396.22 V 30768808, Jul 8, 5:30 PM O 425 H 429.5 L 391.03 C 396.22 V 30768808, Jul 9, 9:30 AM O 409.76 H 422.15 L 383.93 C 418.88 V 38600944, Jul 9, 5:30 PM O 409.76 H 422.15 L 383.93 C 418.88 V 38600944, Jul 10, 9:30 AM O 430 H 430 L 388.06 C 388.5 V 33927280, Jul 10, 5:30 PM O 430 H 430 L 388.06 C 388.5 V 33927280, Jul 13, 9:30 AM O 371.99 H 380 L 337.97 C 339.49 V 38820850, Jul 13, 5:30 PM O 371.99 H 380 L 337.97 C 339.49 V 38820850, Jul 14, 9:30 AM O 343.76 H 360.36 L 326.66 C 358.37 V 33159063, Jul 14, 5:30 PM O 343.76 H 360.36 L 326.66 C 358.37 V 33159063, Jul 15, 9:30 AM O 351 H 351.6 L 303 C 304.4 V 52341002, Jul 15, 5:30 PM O 351 H 351.6 L 303 C 304.4 V 52341002, Jul 16, 9:30 AM O 300 H 316.66 L 299.59 C 309.66 V 24373652, Jul 16, 5:30 PM O 300 H 316.66 L 293.29 C 300.25 V 39563352, Jul 17, 5:30 PM O 287 H 292.76 L 252.1 C 252.86 V 50216847

From high -50.13%Drawdown -50.13%Stored labels 21

Price move attribution

Large moves, explained residuals, and research gaps

3 stored large-move attributions

High-priority unexplained moves0Open moves where direct company catalyst evidence is missing or weak.

Direct labels0Company-specific filings, disclosures, earnings, guidance, or direct source links.

Theme driver days0Moves benchmarked against a matched thematic basket before peer residuals.

Review workbench

High-priority unexplained moves

2 shown

Jun 4, 2026

No relevant stored event for up moveNo relevant stored event label passed the company move-attribution threshold for this +8.70% daily move. · Unexplained Review · generated

Move +8.70%Macro / market +0.44%Sector after macro -1.74%Industry after sector -0.45%Residual after context +10.45%

Review priority 73 · Source rank 0 · Volume 1.5x

Source gap missing_direct_company_catalyst · Next action research_company_specific_news

Macro surprise surprise_pct_of_forecast 0.78 · score 8%

Decomposition: Macro +0.44% · Sector -1.74% · Industry -0.45% · Peer Specific +0.00% · Company Catalyst +0.00% · Unexplained Residual +10.45%Rejected labels: RatingDog Manufacturing PMI (macro_without_surprise) · RatingDog Manufacturing PMI (macro_without_surprise) · RatingDog Manufacturing PMI (macro_without_surprise) · RatingDog Manufacturing PMI (macro_without_surprise) · RatingDog Manufacturing PMI (macro_without_surprise) · RatingDog Manufacturing PMI (macro_without_surprise) · RatingDog Manufacturing PMI (macro_without_surprise) · RatingDog Manufacturing PMI (macro_without_surprise)

Jun 17, 2026

No relevant stored event for up moveNo relevant stored event label passed the company move-attribution threshold for this +8.67% daily move. · Unexplained Review · generated

Move +8.67%Macro / market +1.84%Sector after macro -0.71%Industry after sector +0.65%Residual after context +6.88%

Review priority 64 · Source rank 0 · Volume 1.3x

Source gap missing_direct_company_catalyst · Next action research_company_specific_news

Decomposition: Macro +1.84% · Sector -0.71% · Industry +0.65% · Peer Specific +0.00% · Company Catalyst +0.00% · Unexplained Residual +6.88%Rejected labels: Retail Sales YoY (macro_without_surprise) · Industrial Production YoY (macro_without_surprise) · Retail Sales YoY (macro_without_surprise) · Industrial Production YoY (macro_without_surprise) · Retail Sales YoY (macro_without_surprise) · Industrial Production YoY (macro_without_surprise) · Retail Sales YoY (macro_without_surprise) · Industrial Production YoY (macro_without_surprise)

Biwin Storage Technology Co., Ltd. Class A

Large moves, explained residuals, and research gaps

High-priority unexplained moves

Accepted price-move labels