What Is Overfitting? Why Can More Perfect Parameters Make a Strategy More Fragile?

A trading strategy may perform almost perfectly in historical backtests, with a high win rate, a smooth equity curve, and a small maximum drawdown, making it seem as though it has found a market pattern. But once it enters the real market, it may incur frequent losses. One important reason behind this is overfitting.

First, what is overfitting?

Simply put, it means a strategy has adapted too closely to specific fluctuations and random events in historical data, without truly identifying patterns that can cont

haseeb09 an hour ago

Morning Updates and Newses......

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kithe 2 hours ago

You can claim a snake for free, but snakes don’t seem to be much use. There are paid-tier snakes too.
You can only use them to play the game, and you need to put in real money to play.
It’s like Snake: if you crash into someone and take them out, you can take 90% of their chips.
There don’t seem to be many people playing right now. I’ll just grab the free one for now.
Not buying the paid ones!
Link:

ThisIsTranslateContent:an hour ago

#Dr.Han牛津辩论社演讲 Combining the views expressed by Dr. Han in his “Start Alone” speech at the Oxford Union, I believe the core capabilities entrepreneurs need most in the AI era can be summed up in three points: the ability to think strategically about using AI, the resilience to weather cycles, and the organizational ability to connect people. AI boosts efficiency, while people set the direction, shoulder the pressure, and bring people together.

I. The ability to think strategically about using AI — the key to “Boss+AI”

• Dr. Han’s “Boss+AI” model is essentially about making AI an amplifier, n

BlackoutCryptoBoy 43 minutes ago

🔹South Korean Chip Stocks Rebound Against the Trend! KOSPI Gains Over 2, While SK Hynix and Samsung

LIVE3,657

WishForColdWeather 34 minutes ago

How can you tell whether a trading strategy has stopped working, rather than mistaking a normal drawdown for a problem with the strategy?

A trading strategy losing money during its operation does not necessarily mean it has stopped working. Any strategy involving uncertainty can experience drawdowns. What really matters is distinguishing normal fluctuations from signs that the strategy's edge is fading.

First, check whether the drawdown exceeds its historical range. If the current drawdown is significantly larger than what was common in historical tests, it warrants further investigation. Bu

BtcsosSignalSharing 34 minutes ago

Sis saw this leaderboard and her eyes went wide👀 Aesthetic_Meow opened 59 positions, with a 69% win rate and simulated returns of +7017%, securing the top spot; 612 Ceros followed close behind at +6063%; ChronoTiger had the steadiest performance with an 85% win rate. Across the board, there were 711 signals, 533 hits and 333 stop-losses—solid results. One reminder: these figures are based on simulated 100x leverage, so take them with a grain of salt and don't rush in. See the image for the full leaderboard. Shared for personal record-keeping; not investment advice. By the way, last time (11-1

BTC-0.65%

TheGANNMan an hour ago

Folks!
The entire Crypto Market is getting HAMMERED!
Yet ONE altcoin refuses to play along! 👀
Any guesses which one?
Come on, it should be obvious by now. I've been banging on about it for weeks!
midnight-3:native 🌙 #MIDNIGHT 🌙
Showing remarkable strength here while the rest of the market bleeds!
Now imagine what happens when the broader market finally stops dumping...
I reckon she's going to RIP HARD! 🚀🔥
Who's been paying attention?
1st Chart, NIGHTUSDT 🚀🚀🚀
2nd Chart, NIGHTUSDT/BTCUSDT 🌙🌙🌙

NIGHT-3.10%

CryptoCircleBullSays 2 hours ago

$BTC Currently trading at 68,542.04, down 6.95% over 24 hours (range: 68,307.28–73,738.36). The 1-hour trend is weak, with an RSI of 9; the 4-hour trend is weak, with an RSI of 11. If the price breaks above 73,738.36 decisively, watch for further upside. If it falls below the 68,307.28 support level, the short-term structure may weaken. Market volatility is high; for observation only.

BTC-0.67%

EqunixHub an hour ago

$XRP ‌
The market structure has clearly shifted bearish, transitioning from a consolidation phase near the 1.0641 level into a sharp breakdown. The K-line analysis shows a series of lower highs and lower lows, with the price currently piercing the lower Bollinger Band (LB: 1.0088) and trading significantly below the middle band (MB: 1.0316). The recent price action is dominated by strong red candles, indicating heavy selling pressure, while the MACD histogram is expanding downward and the signal lines (DIF and DEA) have crossed below the zero line, confirming strong bearish momentum.

The mos

XRP-1.15%

智赢舵手 an hour ago

MAGMA is surging, riding the wave of momentum to new highs—the bulls are firmly in control here. Currently building a long position at $MAGMA . Buy zone: 0.33347 - 0.34097 Take-profit 1: 0.36181 Take-profit 2: 0.38148 Risk level: 0.31680 I support this view.
I’ll continue keeping $SKHYNIX and $ARIA on my watchlist.

MAGMA-0.57%

SKHYNIX+1.41%

ARIA+22.03%

CryptoChampion2 hours ago

GateLiveChinese2026-11-13 02:45:29

🏆 Gate Live Chinese-Language Streamer Rising Stars List Vol. 05
Congratulations to the following streamers for making the list with high-quality content and immense popularity!
🎁 Each featured streamer will receive one Gate soccer ball
⭐ @小明Fou
Short-term trading, quick in and out
https://www.gate.com/profile/%E5%B0%8F%E6%98%8EFou
⭐ @锐揽万金
A practitioner and advocate of naked-chart trading, volume-price analysis, and indicators
https://www.gate.com/profile/%E9%94%90%E6%8F%BD%E4%B8%87%E9%87%91
⭐ @夜行者
Specializes in technical analysis and trading strategies
https://www.gate.com/profile/g1_8y-Ps0fEzRxQ6EJ
⭐ @T一trader
Specializes in price action analysis; a naked-chart trader
https://www.gate.com/profile/g1FOquEtiuPa8vVf0T
⭐@Crypto小猫猫
Years of hands-on market experience, consistently documenting trades and reflections. No get-rich-quick fantasies—just a focus on high risk-reward analysis
https://www.gate.com/profile/Crypto%E5%B0%8F%E7%8C%AB%E7%8C%AB
Thank you to every streamer who creates thoughtfully and keeps livestreaming. We’ll continue to discover more creators with high-quality content and provide outstanding streamers with more exposure opportunities and growth support.
🔔 Follow your favorite streamers so you don’t miss a single great livestream!
Which streamer would you like to see on the next edition? Leave your recommendations in the comments👇

BrotherDongBit 6 minutes ago

It was given to Silk Road in advance and easily came to fruition, perfectly illustrating what it means to draw K-lines and write the script. It decisively broke through the second take-profit target, dipping to 67449. In short, all that talk was for nothing—those who followed made an absolute killing.💥🤩#BTC跌4% #ETH一度跌破2000美元 #黄仁勋辞职 $BTC $ETH

BTC-0.65%

ETH-1.23%

CryptoPlayerWithBadIntentions an hour ago

Scumbag Watch: SPCX Update 11.13

Big Rocket closed at 139.94 in Thursday’s U.S. trading session, up 0.14%, with an intraday high of 147.60 and low of 137.75.

Big Rocket saw sharp swings at the open. The bulls quickly pushed up to the 148 level but failed to break through, then retreated. It ultimately closed up just 0.14 percentage points. The Scumbag had expected it to test the downtrend line before pulling back to the lower edge of the rising channel, but that didn’t happen.

On the candlestick chart, the share price is above the 5-day and 10-day moving averages, which are providing some s

SPCX+0.11%

MarketAdvicer2 hours ago

🤝 Elon Musk: “It would be an honor” to hire Jensen Huang! 🚀
💬 Musk made the remark on X after a user urged him to hire the NVIDIA CEO, amid reports that NVIDIA’s board is reviewing Huang’s future at the company.
🔥 A surprising show of support from Musk as controversy surrounds one of the biggest names in AI! 🤖

NVDA-4.49%

CryptoCircleBullSays an hour ago

$LINK Currently at 9.70, down 3.62% over 24H. The 1H trend is weak, with price below EMA20 at 9.98 and RSI at 30; the 4H trend is weaker, with EMA20 at 10.19 and RSI at 29, confirming downside momentum across both time frames. The volume ratio is only 0.55x. Watch for a sustained move above the 10.166 resistance level on increased volume before considering a rebound; if price breaks below the 9.623 support level and fails to recover, weakness is likely to continue. Going forward, monitor whether price can hold above 10.166. The signal is invalidated if volume remains insufficient or price brea

WishForColdWeather an hour ago

When Signals Across Multiple Timeframes Conflict, Which One Should You Listen To?

The daily chart shows an upward trend, but the 4-hour chart is pulling back, while the 15-minute chart suddenly flashes a breakout signal. Faced with conflicting charts, many traders become hesitant: should they buy, sell, or keep waiting?

The issue may not be that one timeframe is wrong, but that you haven’t clearly defined the role of each timeframe in advance.

First, determine your trading time horizon.

If you’re a short-term trader, you need to be clear about your holding period and exit conditions. If yo

kithe 2 hours ago

You can claim a snake for free, though it doesn't seem very useful. There are paid-tier snakes too.
You can only use it to play games, and you need to put in real money to play.
Like Snake, if you crash into someone and kill them, you can take 90% of their chips.
Doesn't seem like many people are playing right now. I'll just grab the free one for now.
Not playing with paid ones!
Link:

TheOvercomer 2 hours ago

Earlier, when ETH was at 2,700, someone was unwaveringly convinced it was going to zero. Now it has broken below 2,000. The current price is around 2,922. In the meantime, someone still had a dirty mouth, saying they'd eat shit if it broke below. I'm speechless. $ETH ‌

ETH-1.26%

Falcon_Official 8 minutes ago

#ETHBrieflyFallsBelow2000 📉 ETH briefly fell below $2,000—is it really time to find a new bottom?

BTC continued to weaken, and ETH also failed to hold $2,000, briefly dipping to around $1,983.

ETH has faced considerable pressure recently. 👀

💰 ETF outflows, institutional buying still needs to recover

📊 Inflationary pressures persist, and sentiment toward risk assets remains cautious

⚡ Leveraged liquidations intensify, further amplifying short-term volatility

Bulls and bears are divided again: some believe the area around $2,000 is worth watching, while others worry that funds have yet

GateSquare2026-11-13 03:39:09

📉 ETH briefly fell below $2,000—is it really time to find a new bottom?
BTC continued to weaken, and ETH also failed to hold $2,000, briefly dipping to around $1,983.
ETH has faced considerable pressure recently. 👀
💰 ETF outflows, institutional buying still needs to recover
📊 Inflationary pressures persist, and sentiment toward risk assets remains cautious
⚡ Leveraged liquidations intensify, further amplifying short-term volatility
Bulls and bears are divided again: some believe the area around $2,000 is worth watching, while others worry that funds have yet to flow back in and the downtrend is not over.
If ETH climbs back above $2,000, would you consider the rebound to have begun, or would you need more signals to confirm?
Bring #ETH一度跌破2000美元 to Gate Square to share your position changes, market views, or trading strategies.
💬 Would you look for opportunities in stages, or wait until ETH truly stabilizes before taking action?

ETH-1.26%

BTC-0.67%

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