— 日本株 空売り残高 可視化 —
最終更新 2026-10-22
データ出典: JPX
8029 SECURITIES CODE / スタンダード

ルックホールディングス(8029)の空売り残高情報

LOOK HOLDINGS INCORPORATED
スタンダード 繊維製品 素材・化学 TOPIX Small 2

ルックホールディングス(8029)の空売り残高は、2026年10月20日公表時点で1社・合計0.61%です。前回の公表から0.09ポイント増えています。保有しているのはNomura International plcのみです。2022年1月以降の合計の最高は2.76%(2026年2月3日)です。

※ JPX の公表データを自動で集計した文章です。集計の前提・注意事項

集計の前提と注意事項

  • 取引所(JPX)が公表した空売り残高のデータを、機械的に集計して自動で作成した文章です。
  • 残高割合0.5%未満の分は公表されないため、含みません。
  • 公表がない日は、直前に公表された値が続いているものとして計算しています。最後の公表から120日を過ぎたものは除いています。
  • 数値は、公表日より前の計算日時点のものです。
  • このため実際の空売り残高とは異なる場合があり、正確性・完全性を保証するものではありません。
  • 売買を勧めるものではありません。投資の判断はご自身で行ってください。
前回比
+0.09pt
前回 0.52% → 0.61%
公表日 増加セラー(2026-10-20)
1機関
合計 +0.09pt
公表日 減少セラー(2026-10-20)
0機関
合計 0.00pt
直近120日 高値 / 安値
1.12 / 0.51%
2026-07-21 / 2026-08-04
残高比率の推移 — 直近120日 直近公表日 2026-10-20
  • 直近の公表日から120日を遡った時点から0.5%以上の割合残高を集計したもの
  • 遡った時点の前で発生したものや個人の割合残高は集計に含まれていない場合があります

01.直近公表日の内訳 — 機関投資家別

0.61% 前回比 +0.09%
残高株数 47,999
Nomura International plc → この銘柄のみ

02.5 繊維製品 — 業種バリュエーション

PER (単純)
15.20
業種平均
PER (加重)
12.40
時価加重
PBR (単純)
0.60
業種平均
PBR (加重)
0.90
時価加重

03.公表履歴 — 全 199 件

公表日 計算日 空売り者 残高株数 残高割合 直近割合 増減率 備考
2026-10-202026-10-16Nomura International plc47,9990.61%0.52%+0.09%
2026-09-182026-09-16Nomura International plc40,9000.52%0.41%+0.11%再IN前回の解消 2026-08-12
2026-08-122026-08-10Nomura International plc38,6220.49%0.51%-0.02%解消
2026-08-042026-07-31Nomura International plc40,2940.51%0.49%+0.02%再IN前回の解消 2026-07-31
2026-07-312026-07-29Nomura International plc38,8950.49%0.59%-0.10%解消
2026-07-292026-07-27Barclays Capital Securities Ltd36,9440.47%0.53%-0.06%解消
2026-07-212026-07-16Barclays Capital Securities Ltd41,4440.53%0.40%+0.13%再IN前回の解消 2026-01-08
2026-07-062026-07-02Nomura International plc46,7410.59%0.60%-0.01%
2026-07-032026-07-01Nomura International plc46,9270.60%0.59%+0.01%
2026-07-012026-06-29Nomura International plc46,4980.59%0.69%-0.10%
2026-06-052026-06-03Nomura International plc54,7070.69%0.70%-0.01%
2026-06-042026-06-02Nomura International plc55,2860.70%0.69%+0.01%
2026-06-012026-05-28Nomura International plc54,2080.69%0.70%-0.01%
2026-05-292026-05-27Nomura International plc54,8100.70%0.69%+0.01%
2026-05-282026-05-26Nomura International plc54,6090.69%0.78%-0.09%
2026-05-072026-05-01Nomura International plc61,5570.78%0.81%-0.03%
2026-04-282026-04-24Nomura International plc63,7560.81%0.70%+0.11%
2026-04-222026-04-20MERRILL LYNCH INTERNATIONAL37,2840.47%0.52%-0.05%解消
2026-04-212026-04-17MERRILL LYNCH INTERNATIONAL40,7840.52%0.55%-0.03%
2026-04-202026-04-16MERRILL LYNCH INTERNATIONAL42,8840.55%0.57%-0.02%
2026-04-172026-04-15MERRILL LYNCH INTERNATIONAL44,7840.57%0.72%-0.15%
2026-04-162026-04-14MERRILL LYNCH INTERNATIONAL56,8840.72%0.75%-0.03%
2026-04-152026-04-13MERRILL LYNCH INTERNATIONAL58,4840.75%0.78%-0.03%
2026-04-142026-04-10MERRILL LYNCH INTERNATIONAL60,9840.78%0.81%-0.03%
2026-04-132026-04-09MERRILL LYNCH INTERNATIONAL63,3840.81%0.84%-0.03%
2026-04-062026-04-02MERRILL LYNCH INTERNATIONAL65,5840.84%0.87%-0.03%
2026-04-022026-03-31MERRILL LYNCH INTERNATIONAL68,2840.87%0.86%+0.01%
2026-03-312026-03-27MERRILL LYNCH INTERNATIONAL67,1840.86%0.85%+0.01%
2026-03-302026-03-26MERRILL LYNCH INTERNATIONAL66,3840.85%0.82%+0.03%
2026-03-262026-03-24MERRILL LYNCH INTERNATIONAL64,5840.82%0.85%-0.03%
2026-03-252026-03-23MERRILL LYNCH INTERNATIONAL66,2840.85%0.86%-0.01%
2026-03-242026-03-19MERRILL LYNCH INTERNATIONAL67,2840.86%0.88%-0.02%
2026-03-232026-03-18MERRILL LYNCH INTERNATIONAL69,0840.88%0.89%-0.01%
2026-03-192026-03-17MERRILL LYNCH INTERNATIONAL69,5840.89%0.91%-0.02%
2026-03-182026-03-16MERRILL LYNCH INTERNATIONAL71,2840.91%0.90%+0.01%
2026-03-132026-03-11MERRILL LYNCH INTERNATIONAL70,2840.90%0.92%-0.02%
2026-03-122026-03-10MERRILL LYNCH INTERNATIONAL71,9840.92%0.90%+0.02%
2026-03-112026-03-09MERRILL LYNCH INTERNATIONAL70,4840.90%0.87%+0.03%
2026-03-102026-03-06Nomura International plc54,9170.70%0.67%+0.03%
2026-03-092026-03-05MERRILL LYNCH INTERNATIONAL68,0840.87%0.86%+0.01%
2026-03-062026-03-04MERRILL LYNCH INTERNATIONAL67,5840.86%0.81%+0.05%
2026-03-052026-03-03MERRILL LYNCH INTERNATIONAL63,6840.81%0.80%+0.01%
2026-03-042026-03-02MERRILL LYNCH INTERNATIONAL62,5840.80%0.79%+0.01%
2026-03-032026-02-27MERRILL LYNCH INTERNATIONAL61,8840.79%0.77%+0.02%
2026-03-032026-02-27GOLDMAN SACHS INTERNATIONAL38,5460.49%0.50%-0.01%解消
2026-03-022026-02-26MERRILL LYNCH INTERNATIONAL60,7840.77%0.76%+0.01%
2026-02-272026-02-25MERRILL LYNCH INTERNATIONAL59,7840.76%0.73%+0.03%
2026-02-262026-02-24MERRILL LYNCH INTERNATIONAL57,4840.73%0.74%-0.01%
2026-02-252026-02-20MERRILL LYNCH INTERNATIONAL57,9840.74%0.71%+0.03%
2026-02-242026-02-19GOLDMAN SACHS INTERNATIONAL39,4460.50%0.42%+0.08%再IN前回の解消 2026-02-06
2026-02-202026-02-18MERRILL LYNCH INTERNATIONAL55,9840.71%0.69%+0.02%
2026-02-192026-02-17MERRILL LYNCH INTERNATIONAL54,4840.69%0.65%+0.04%
2026-02-182026-02-16MERRILL LYNCH INTERNATIONAL51,1840.65%0.64%+0.01%
2026-02-172026-02-13MERRILL LYNCH INTERNATIONAL50,2840.64%0.67%-0.03%
2026-02-162026-02-12MERRILL LYNCH INTERNATIONAL52,9840.67%0.75%-0.08%
2026-02-132026-02-10UBS AG38,9000.49%0.59%-0.10%解消
2026-02-132026-02-10MERRILL LYNCH INTERNATIONAL58,4840.75%0.77%-0.02%
2026-02-062026-02-04UBS AG46,5000.59%0.69%-0.10%
2026-02-062026-02-04GOLDMAN SACHS INTERNATIONAL38,5460.49%0.56%-0.07%解消
2026-02-052026-02-03Nomura International plc52,6320.67%0.72%-0.05%
2026-02-052026-02-03MERRILL LYNCH INTERNATIONAL60,3840.77%0.78%-0.01%
2026-02-042026-02-02Nomura International plc56,1810.72%0.69%+0.03%
2026-02-042026-02-02MERRILL LYNCH INTERNATIONAL61,1840.78%0.72%+0.06%
2026-02-042026-02-02GOLDMAN SACHS INTERNATIONAL44,0460.56%0.66%-0.10%
2026-02-032026-01-30MERRILL LYNCH INTERNATIONAL56,4840.72%0.69%+0.03%
2026-02-022026-01-29MERRILL LYNCH INTERNATIONAL54,3840.69%0.68%+0.01%
2026-01-302026-01-28UBS AG53,9000.69%0.72%-0.03%
2026-01-302026-01-28Nomura International plc54,0700.69%0.71%-0.02%
2026-01-302026-01-28MERRILL LYNCH INTERNATIONAL53,0840.68%0.59%+0.09%
2026-01-292026-01-27UBS AG56,2000.72%0.61%+0.11%
2026-01-292026-01-27Nomura International plc55,4940.71%0.68%+0.03%
2026-01-292026-01-27MERRILL LYNCH INTERNATIONAL46,2840.59%0.56%+0.03%
2026-01-282026-01-26Nomura International plc53,7530.68%0.57%+0.11%
2026-01-272026-01-23MERRILL LYNCH INTERNATIONAL44,1840.56%0.47%+0.09%再IN前回の解消 2026-01-26
2026-01-272026-01-23GOLDMAN SACHS INTERNATIONAL52,0460.66%0.78%-0.12%
2026-01-262026-01-22Nomura International plc45,0810.57%0.60%-0.03%
2026-01-262026-01-22MERRILL LYNCH INTERNATIONAL37,0840.47%0.51%-0.04%解消
2026-01-232026-01-21UBS AG48,1960.61%0.59%+0.02%
2026-01-232026-01-21Nomura International plc46,8420.60%0.59%+0.01%
2026-01-232026-01-21MERRILL LYNCH INTERNATIONAL40,3840.51%0.54%-0.03%
2026-01-222026-01-20MERRILL LYNCH INTERNATIONAL42,7840.54%0.53%+0.01%
2026-01-212026-01-19Nomura International plc46,4910.59%0.40%+0.19%新規
2026-01-212026-01-19MERRILL LYNCH INTERNATIONAL41,7840.53%0.39%+0.14%再IN前回の解消 2026-01-09
2026-01-212026-01-19GOLDMAN SACHS INTERNATIONAL60,9460.78%0.69%+0.09%
2026-01-202026-01-16GOLDMAN SACHS INTERNATIONAL53,9460.69%0.73%-0.04%
2026-01-152026-01-13UBS AG46,1000.59%0.60%-0.01%
2026-01-132026-01-08UBS AG46,9000.60%0.59%+0.01%
2026-01-092026-01-07UBS AG46,4000.59%0.62%-0.03%
2026-01-092026-01-07MERRILL LYNCH INTERNATIONAL38,4840.49%0.55%-0.06%解消
2026-01-092026-01-07GOLDMAN SACHS INTERNATIONAL57,6460.73%0.94%-0.21%
2026-01-082026-01-06MERRILL LYNCH INTERNATIONAL42,9840.55%0.60%-0.05%
2026-01-082026-01-06Barclays Capital Securities Ltd36,9440.47%0.50%-0.03%解消
2026-01-072026-01-05UBS AG48,7000.62%0.55%+0.07%
2026-01-072026-01-05MERRILL LYNCH INTERNATIONAL46,7840.60%0.62%-0.02%
2026-01-062025-12-30GOLDMAN SACHS INTERNATIONAL73,3460.94%0.82%+0.12%
2026-01-052025-12-29UBS AG43,0000.55%0.40%+0.15%新規
2026-01-052025-12-29MERRILL LYNCH INTERNATIONAL48,4840.62%0.59%+0.03%
2025-12-302025-12-26GOLDMAN SACHS INTERNATIONAL64,0460.82%0.73%+0.09%
2025-12-302025-12-26Barclays Capital Securities Ltd39,2440.50%0.49%+0.01%再IN前回の解消 2025-12-29
2025-12-292025-12-25MERRILL LYNCH INTERNATIONAL46,0840.59%0.57%+0.02%
2025-12-292025-12-25Barclays Capital Securities Ltd38,7440.49%0.50%-0.01%解消
2025-12-252025-12-23MERRILL LYNCH INTERNATIONAL44,9840.57%0.56%+0.01%
2025-12-242025-12-22MERRILL LYNCH INTERNATIONAL43,8840.56%0.53%+0.03%
2025-12-242025-12-22Barclays Capital Securities Ltd39,5440.50%0.40%+0.10%再IN前回の解消 2023-05-16
2025-12-232025-12-19MERRILL LYNCH INTERNATIONAL41,6840.53%0.52%+0.01%
2025-12-222025-12-18MERRILL LYNCH INTERNATIONAL40,7840.52%0.51%+0.01%
2025-12-192025-12-17MERRILL LYNCH INTERNATIONAL40,2840.51%0.49%+0.02%新規
2025-12-152025-12-11GOLDMAN SACHS INTERNATIONAL57,6460.73%0.63%+0.10%
2025-12-102025-12-08GOLDMAN SACHS INTERNATIONAL49,6930.63%0.57%+0.06%
2025-12-032025-12-01GOLDMAN SACHS INTERNATIONAL44,7930.57%0.60%-0.03%
2025-10-022025-09-30GOLDMAN SACHS INTERNATIONAL47,4930.60%0.57%+0.03%
2025-09-102025-09-08GOLDMAN SACHS INTERNATIONAL45,1930.57%0.62%-0.05%
2025-09-092025-09-05GOLDMAN SACHS INTERNATIONAL48,9930.62%0.74%-0.12%
2025-07-022025-06-30GOLDMAN SACHS INTERNATIONAL45,3930.58%0.67%-0.09%
2025-06-252025-06-23GOLDMAN SACHS INTERNATIONAL52,9930.67%0.70%-0.03%
2025-06-112025-06-09GOLDMAN SACHS INTERNATIONAL54,5930.70%0.69%+0.01%
2025-06-042025-06-02GOLDMAN SACHS INTERNATIONAL54,4930.69%0.71%-0.02%
2025-04-222025-04-21モルガン・スタンレーMUFG証券株式会社38,6500.49%0.58%-0.09%解消
2025-04-222025-04-18GOLDMAN SACHS INTERNATIONAL55,8930.71%0.61%+0.10%
2025-04-172025-04-16モルガン・スタンレーMUFG証券株式会社45,4500.58%0.69%-0.11%
2025-04-162025-04-14GOLDMAN SACHS INTERNATIONAL47,5930.61%0.59%+0.02%
2025-04-142025-04-11モルガン・スタンレーMUFG証券株式会社54,1500.69%0.75%-0.06%
2025-04-102025-04-09モルガン・スタンレーMUFG証券株式会社58,8860.75%0.89%-0.14%
2025-04-072025-04-04モルガン・スタンレーMUFG証券株式会社69,1860.89%0.99%-0.10%
2025-04-022025-03-31GOLDMAN SACHS INTERNATIONAL46,5930.59%0.62%-0.03%
2025-03-272025-03-26モルガン・スタンレーMUFG証券株式会社76,9930.99%1.07%-0.08%
2025-03-252025-03-24モルガン・スタンレーMUFG証券株式会社83,3931.07%1.13%-0.06%
2025-03-192025-03-18モルガン・スタンレーMUFG証券株式会社88,5181.13%1.20%-0.07%
2025-02-102025-02-07モルガン・スタンレーMUFG証券株式会社94,0181.20%1.10%+0.10%
2025-02-032025-01-31モルガン・スタンレーMUFG証券株式会社86,0181.10%1.09%+0.01%
2025-01-142025-01-09GOLDMAN SACHS INTERNATIONAL48,3930.62%0.55%+0.07%
2025-01-102025-01-08GOLDMAN SACHS INTERNATIONAL42,7930.55%0.41%+0.14%再IN前回の解消 2024-01-22
2025-01-092025-01-08モルガン・スタンレーMUFG証券株式会社84,8181.09%0.96%+0.13%
2025-01-072025-01-06モルガン・スタンレーMUFG証券株式会社75,1180.96%0.75%+0.21%
2025-01-062024-12-30モルガン・スタンレーMUFG証券株式会社58,7180.75%0.51%+0.24%
2024-12-252024-12-24モルガン・スタンレーMUFG証券株式会社40,0180.51%0.41%+0.10%新規
2024-12-232024-12-19JPM Securities Japan Co Ltd.00.00%0.70%-0.70%解消
2024-12-162024-12-13JPM Securities Japan Co Ltd.54,9000.70%0.60%+0.10%
2024-12-122024-12-10JPM Securities Japan Co Ltd.47,4000.60%0.50%+0.10%
2024-11-292024-11-27JPM Securities Japan Co Ltd.39,4000.50%0.41%+0.09%新規
2024-01-222024-01-18GOLDMAN SACHS INTERNATIONAL38,2430.49%0.55%-0.06%解消
2024-01-092024-01-04GOLDMAN SACHS INTERNATIONAL42,8430.55%0.46%+0.09%再IN前回の解消 2023-11-27
2023-11-272023-11-22GOLDMAN SACHS INTERNATIONAL36,8730.47%0.63%-0.16%解消
2023-11-242023-11-21GOLDMAN SACHS INTERNATIONAL49,3730.63%0.75%-0.12%
2023-11-222023-11-20GOLDMAN SACHS INTERNATIONAL58,6730.75%0.85%-0.10%
2023-11-212023-11-17GOLDMAN SACHS INTERNATIONAL66,2730.85%0.98%-0.13%
2023-11-202023-11-16GOLDMAN SACHS INTERNATIONAL76,7730.98%1.19%-0.21%
2023-11-152023-11-13GOLDMAN SACHS INTERNATIONAL92,6731.19%1.22%-0.03%
2023-11-142023-11-10GOLDMAN SACHS INTERNATIONAL94,6731.22%1.11%+0.11%
2023-11-012023-10-30GOLDMAN SACHS INTERNATIONAL86,2731.11%0.99%+0.12%
2023-10-312023-10-27GOLDMAN SACHS INTERNATIONAL77,0730.99%1.02%-0.03%
2023-10-182023-10-16GOLDMAN SACHS INTERNATIONAL79,7731.02%0.91%+0.11%
2023-10-122023-10-10GOLDMAN SACHS INTERNATIONAL70,9730.91%0.83%+0.08%
2023-10-102023-10-05GOLDMAN SACHS INTERNATIONAL64,7730.83%0.74%+0.09%
2023-10-052023-10-03GOLDMAN SACHS INTERNATIONAL57,4730.74%0.62%+0.12%
2023-10-022023-09-28GOLDMAN SACHS INTERNATIONAL48,2730.62%0.54%+0.08%
2023-09-292023-09-27GOLDMAN SACHS INTERNATIONAL42,2730.54%0.46%+0.08%新規
2023-05-162023-05-12Barclays Capital Securities Ltd37,0000.47%0.59%-0.12%解消
2023-05-082023-05-01Barclays Capital Securities Ltd45,8000.59%0.69%-0.10%
2023-05-012023-04-27Integrated Core Strategies (Asia) Pte. Ltd.12,9000.16%0.70%-0.54%解消
2023-04-282023-04-26Integrated Core Strategies (Asia) Pte. Ltd.54,3490.70%0.60%+0.10%
2023-04-202023-04-18Integrated Core Strategies (Asia) Pte. Ltd.46,9490.60%0.50%+0.10%
2023-04-182023-04-14Barclays Capital Securities Ltd53,7000.69%0.79%-0.10%
2023-04-112023-04-07Integrated Core Strategies (Asia) Pte. Ltd.38,8000.50%0.48%+0.02%再IN前回の解消 2023-03-17
2023-03-172023-03-15Integrated Core Strategies (Asia) Pte. Ltd.37,9000.48%0.52%-0.04%解消
2023-03-152023-03-13Barclays Capital Securities Ltd61,8000.79%0.80%-0.01%
2023-03-092023-03-07Barclays Capital Securities Ltd62,3000.80%0.77%+0.03%
2023-02-022023-01-30Integrated Core Strategies (Asia) Pte. Ltd.40,4000.52%0.81%-0.29%
2023-01-262023-01-24Integrated Core Strategies (Asia) Pte. Ltd.63,1000.81%0.71%+0.10%
2023-01-162023-01-12Integrated Core Strategies (Asia) Pte. Ltd.55,4000.71%0.69%+0.02%
2022-12-282022-12-26Integrated Core Strategies (Asia) Pte. Ltd.54,0620.69%0.70%-0.01%
2022-12-272022-12-23Integrated Core Strategies (Asia) Pte. Ltd.54,4620.70%0.68%+0.02%
2022-12-122022-12-08Barclays Capital Securities Ltd60,2000.77%0.49%+0.28%再IN前回の解消 2022-11-10
2022-11-252022-11-22Integrated Core Strategies (Asia) Pte. Ltd.53,2220.68%0.78%-0.10%
2022-11-102022-11-08Barclays Capital Securities Ltd38,6000.49%0.50%-0.01%解消
2022-11-092022-11-07Barclays Capital Securities Ltd38,8000.50%0.49%+0.01%再IN前回の解消 2022-10-27
2022-11-012022-10-28Integrated Core Strategies (Asia) Pte. Ltd.60,8620.78%0.80%-0.02%
2022-10-272022-10-25Barclays Capital Securities Ltd38,4000.49%0.50%-0.01%解消
2022-09-282022-09-26Integrated Core Strategies (Asia) Pte. Ltd.62,1620.80%0.79%+0.01%
2022-08-182022-05-03JANE STREET GLOBAL TRADING, LLC9,9000.12%0.50%-0.38%解消
2022-08-012022-07-28Integrated Core Strategies (Asia) Pte. Ltd.61,5620.79%1.21%-0.42%
2022-07-252022-07-21Integrated Core Strategies (Asia) Pte. Ltd.94,0001.21%1.11%+0.10%
2022-07-202022-07-15Integrated Core Strategies (Asia) Pte. Ltd.86,3001.11%1.03%+0.08%
2022-07-192022-07-14Integrated Core Strategies (Asia) Pte. Ltd.80,1001.03%0.90%+0.13%
2022-07-132022-07-11Integrated Core Strategies (Asia) Pte. Ltd.69,7000.90%0.86%+0.04%
2022-07-112022-07-07Integrated Core Strategies (Asia) Pte. Ltd.67,0000.86%0.72%+0.14%
2022-07-062022-07-04Integrated Core Strategies (Asia) Pte. Ltd.56,1000.72%0.66%+0.06%
2022-07-062022-07-01Integrated Core Strategies (Asia) Pte. Ltd.51,5000.66%0.55%+0.11%
2022-07-042022-06-30Barclays Capital Securities Ltd39,1000.50%0.49%+0.01%再IN前回の解消 2022-06-09
2022-06-282022-06-24Integrated Core Strategies (Asia) Pte. Ltd.42,6000.55%0.40%+0.15%新規
2022-06-092022-06-07Barclays Capital Securities Ltd38,5000.49%0.51%-0.02%解消
2022-04-202022-04-18Barclays Capital Securities Ltd39,6000.51%0.39%+0.12%新規
2022-03-282022-03-24JANE STREET GLOBAL TRADING, LLC39,2000.50%0.49%+0.01%再IN前回の解消 2022-03-25
2022-03-252022-03-23JANE STREET GLOBAL TRADING, LLC38,5000.49%0.50%-0.01%解消
2022-03-222022-03-18JANE STREET GLOBAL TRADING, LLC38,6000.50%0.48%+0.02%再IN前回の解消 2022-03-03
2022-03-032022-03-01JANE STREET GLOBAL TRADING, LLC37,7000.48%0.50%-0.02%解消
2022-02-282022-02-24JANE STREET GLOBAL TRADING, LLC38,7000.50%0.49%+0.01%再IN前回の解消 2022-02-17
2022-02-172022-02-15JANE STREET GLOBAL TRADING, LLC38,2000.49%0.50%-0.01%解消
2022-01-272022-01-25JANE STREET GLOBAL TRADING, LLC39,2000.50%0.40%+0.10%新規

05.関連リンク