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@tanveerkh110508:
تنویر جروار ☠️
Open In TikTok:
Region: PK
Tuesday 25 August 2026 18:14:45 GMT
237
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Comments
جند A 💔 :
❤️❤️❤️
2026-08-29 00:01:06
0
جند A 💔 :
❤️❤️❤️❤️
2026-08-29 00:01:05
0
نادان 🫡💔 :
🥰🥰🥰
2026-08-28 16:48:07
0
سردار 🦅مدثر🚬✌️ :
❤️❤️❤️
2026-08-27 18:42:09
0
asd111 :
🥰🥰🥰
2026-08-27 13:33:28
0
꧁࿇ 𝖲𝖠𝖥𝖣𝖠𝖱~𝖠𝖫𝖨✓𝖥𝖥 ࿇꧂ :
🥰🥰🥰
2026-08-27 13:31:38
0
TANVEER :
🥰🥰🥰
2026-08-26 19:43:08
0
♛┈⛧گمنام⛧┈♛ :
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2026-08-26 16:30:25
0
💔💕ناداد🤫💔💕 :
💔💔💔
2026-08-26 14:45:52
0
Raju jarwar♥️ :
🥰🥰🥰
2026-08-26 14:19:01
0
abaas :
♥️♥️♥️♥️
2026-08-26 11:29:08
0
abaas :
❤️❤️❤️❤️❤️
2026-08-26 11:29:07
0
╚»★«╝ شانی جروار ╚»★«╝ :
❤️❤️❤️
2026-08-26 08:29:47
0
💫مخلص 𝐑Å𝐌𝐃𝐀𝐍𝐢 :
🥰
2026-08-26 07:22:22
0
💫مخلص 𝐑Å𝐌𝐃𝐀𝐍𝐢 :
❣️
2026-08-26 07:22:16
0
یار جروار ❤️🩹💕 :
💕💕💕
2026-08-26 06:24:49
0
یار جروار ❤️🩹💕 :
🥰🥰🥰
2026-08-26 06:24:48
0
KHOSA 🕊️ :
♥️♥️♥️
2026-08-26 06:19:18
0
🤨نوید جروار🤩🏴☠️ :
💕💕💕
2026-08-26 05:36:34
0
🥲ول آ رل ویسے 🥲 :
❤️❤️❤️
2026-08-26 05:35:58
0
rawal khan :
❤️❤️❤️
2026-08-26 04:54:17
0
SAQIB JANE ❤️🩹🌚 :
❤️❤️❤️
2026-08-26 04:29:42
0
جروار 🥷🚬 :
😘😘😘
2026-08-26 03:51:14
0
جروار 🥷🚬 :
🥰🥰🥰
2026-08-26 03:51:13
0
💯💔✌️2یار✌️💔💯 :
🥰🥰🥰
2026-08-25 18:16:33
0
To see more videos from user @tanveerkh110508, please go to the Tikwm homepage.
Other Videos
Santet ini lebih mengerikan ‼️😱#filmpaketsantet #dikiriminpaketsantet #paketsantet #fikinaki_official #yasaminjasem #fadlyfsl #fadlyfaisal #fakesituation⚠️ #fakebodyy⚠️
mời anh đi bơi nhá 🐬 #viral #Meme
> T, not just slightly above -> Performance depends on the covariance structure -> A naive pseudoinverse approach fails badly out-of-sample Paper -> arXiv:2602.19462 #finance #quant #trading #algotrading #stocks" width="135" height="240">
What if having less data actually made your portfolio better? Classical portfolio theory says this should fail. When N > T, the sample covariance matrix becomes singular and you can construct portfolios with zero in-sample variance. Most people would call this overfitting. But a recent preprint by Chang, Ding, Shi and Zhang (2026) shows something more subtle. Using a simple estimator called Ridgelet, which adds a tiny fixed perturbation to the covariance matrix, they show that out-of-sample risk follows a double descent curve. Risk increases as you approach the interpolation threshold N = T, but once you move deep into the overparameterized regime N >> T, it decreases again. The intuition: when many portfolios perfectly fit the data, the estimator selects the minimum L2-norm solution, which can generalize well. The same phenomenon that drives modern overparameterized neural networks shows up in portfolio construction. This is a preprint, not yet peer-reviewed. Limitations: -> The theory relies on factor model assumptions and random matrix asymptotics -> The "good" regime requires N >> T, not just slightly above -> Performance depends on the covariance structure -> A naive pseudoinverse approach fails badly out-of-sample Paper -> arXiv:2602.19462 #finance #quant #trading #algotrading #stocks
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