TWSE · 6531 · stock

AP Memory Technology Corporation (6531) stock price history

Every TWSE trading session of AP Memory Technology Corporation from Jun 12, 2015 to Sep 24, 2026: 2,750 daily bars, adjusted for splits and dividends, with minute bars from Sep 15, 2026 forward. The full series is served by the API: a free key covers the last year, paid plans the whole history and minute bars.

Get 6531 data, free keyYear by year table

6531 adjusted close, 2015 to 2026

6531AP Memory Technology Corporation
NT$993.00+201.6% over one year
201620182020202220242026
NT$1,182
All time high, 2026
NT$1,296
52 week high, NT$310.87 low
2,750
Daily sessions since 2015

Last updated Sep 24, 2026, the last stored session. Refreshes after each trading day. Full 2015 to 2026 series and minute bars.

6531 key facts

  • AP Memory Technology Corporation (6531) closed at NT$993.00 on Sep 24, 2026 on TWSE.
  • 6531's all time high close is NT$1,182, set on May 29, 2026; its all time low close is NT$15.47 on May 15, 2019.
  • 6531's 52 week range is NT$310.87 to NT$1,296.
  • 6531 returned +201.6% over the year to Sep 24, 2026 and +189.7% over five years.
  • Over ten years 6531 returned +2,442%, +38.2% a year compounded.
  • 6531's deepest drawdown was -76.1% from Nov 1, 2021 to Oct 13, 2022.
  • DataCedar holds 2,750 daily sessions of 6531 history from Jun 12, 2015 and minute bars from Sep 15, 2026, adjusted for splits and dividends, served by the API under a key.

6531 price chart, 2015 to 2026

6531 adjusted close, Jun 12, 2015 to Sep 24, 2026NT$16.31NT$65.85NT$265.76NT$1,073201620182020202220242026
Adjusted daily close, log scale. 260 sampled points across the full history; the API serves every session.

6531 returns

Price return from the last close on or before the window start to Sep 24, 2026, on adjusted closes.

PeriodReturn
1 month+17.5%
3 months-7.2%
6 months+99.6%
Year to date+125.9%
1 year+201.6%
3 years+169.9%
5 years+189.7%
10 years+2,442%
Since Jun 12, 2015+2,645%
Compound annual growth, 11.3 years+34.1%

6531 records

Measured on the stored closes; every figure is reproducible from the API series.

All time high close
NT$1,182 on May 29, 2026
All time low close
NT$15.47 on May 15, 2019
52 week high
NT$1,296 on Jun 1, 2026
52 week low
NT$310.87 on Sep 26, 2025
Deepest drawdown
-76.1% from Nov 1, 2021 to Oct 13, 2022, recovered Mar 17, 2026
Best single session
+21.3% on Oct 14, 2015
Worst single session
-10.1% on Aug 24, 2015
Volatility, 1 year annualised
75.1%
Sessions closing higher, 1 year
50%
Growth of 1 since 2015
27.5×
Best calendar year
2020, +390%
Worst calendar year
2022, -66%

6531 price history by year

Open is the first session's open, high and low span the year, close is the last session's close, and the return is close over the previous year's close. 2015 starts on Jun 12, 2015; 2026 runs to Sep 24, 2026.

YearOpenHighLowCloseReturnVolumeSessions
2026NT$445.94NT$1,296NT$388.83NT$993.00+123.2%891.3M178
2025NT$307.26NT$444.95NT$185.91NT$444.95+44.8%684.1M242
2024NT$448.41NT$528.94NT$242.22NT$307.26-31.3%738.9M242
2023NT$153.94NT$459.37NT$153.94NT$446.98+190.4%1.7B239
2022NT$456.41NT$458.23NT$127.82NT$153.94-66.1%1.1B246
2021NT$193.48NT$568.25NT$192.13NT$453.69+136.4%2.2B243
2020NT$39.15NT$254.24NT$33.07NT$191.91+389.6%2.2B245
2019NT$19.34NT$41.85NT$15.09NT$39.19+105.0%170.7M241
2018NT$39.89NT$39.89NT$17.78NT$19.12-52.1%57.9M245
2017NT$39.06NT$39.89NT$39.06NT$39.89+2.1%0243
2016NT$31.68NT$39.06NT$31.68NT$39.06+23.3%12.2M244
2015NT$36.17NT$40.24NT$19.88NT$31.68n/a11.9M142

6531 monthly closes, last 12 months

MonthMonth end closeChange
September 2026NT$993.00+7.1%
August 2026NT$927.00+39.0%
July 2026NT$667.00-33.2%
June 2026NT$998.00-15.6%
May 2026NT$1,182+41.7%
April 2026NT$834.28+90.0%
March 2026NT$438.99+2.0%
February 2026NT$430.55+0.9%
January 2026NT$426.57-4.1%
December 2025NT$444.95+3.5%
November 2025NT$430.05+6.9%
October 2025NT$402.24+18.9%

About the 6531 data

Daily bars. 2,750 sessions from Jun 12, 2015 to Sep 24, 2026, one row per TWSE trading day with open, high, low, close and volume. Prices are adjusted for splits and cash dividends so the series is comparable across its whole length; the API also serves the raw, split only and dividend only views.

Minute bars. Stored from Sep 15, 2026 forward, most recent session Sep 29, 2026. Minute history is captured from the day collection began and is never backfilled, so this start date is exact. Five minute, fifteen minute and hourly bars are derived from these minutes.

Time and currency. Session dates are TWSE trading days; minute timestamps are UTC. Prices are in TWD. Volume is shares traded on the session.

Get the data. The REST endpoint returns the daily series as JSON with pagination; a free key serves the last year, Quant and above the full history back to Jun 12, 2015, and minute bars come with the paid windows. It takes timeframe (1Min, 5Min, 15Min, 1Hour, 1Day), adjustment, start and end. See the bars endpoint and authentication, and pricing for the plan windows.

curl "https://api.datacedar.com/v3/stocks/6531/bars?timeframe=1Day&adjustment=all&limit=50000" \
  -H "X-API-Key: YOUR_KEY"

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