Long-form article | Why Does an Effective Trading Strategy Suddenly Stop Working?

Many traders run into this problem:

A strategy was consistently profitable, and its backtest curve looked impressive. But a few months later, the same parameters and signals start producing frequent losses in live trading.

Is the problem really with the strategy itself?

Not necessarily. A strategy’s effectiveness often depends on the market environment it operates in, rather than how much it has earned in the past.

There are at least four aspects of the market environment worth watching:

1. The trend struct

Someone put together a dedicated environment setup just to keep using Claude. The project is called Claude-Cage, and it’s on GitHub.
Programmers have been pushed this far—they’re even building professional-grade ban-evasion checks. Dario, this is the golden age you wished for.
Whoa, that’s seriously impressive.

$SOL slipped to about $81.70 overnight and then just... walked right back to $84 like nothing happened. Flat day on paper, but somebody clearly bought that dip.
You adding down here or sitting on your hands? #Solana

Can just anyone provide trading signals?
I've been in crypto for four years without even realizing it. I've experienced bull and bear cycles and watched big players' assets go up in smoke. I've learned that the ups and downs of trading are something you have to experience for yourself, with no one to confide in.
I've grown my holdings from a couple hundred U to tens of thousands of U, but I've also been liquidated twice. At my poorest, I didn't even have ten yuan in my pocket. I worked part-time delivering food. The winter wind cut to the bone and made me shiver uncontrollably. Countless times

Franklin Templeton, which manages $1.81 trillion, took in $302,381,380 of net inflows to its tokenized funds in the past 7 days, the most of any asset manager.
That is more than $43.1M a day, led by BENJI, its money market fund that runs mainly on Stellar.
@FTDA_US @StellarOrg

100u trading gold exclusively, up 11% on day two
$XAUUSD

$PI Hoping the Pi coin bull market arrives soon. Listing it for 1u isn’t too presumptuous, right? ‌

It's time for a late-night meal, friends! 😋
There's grilled pork and eggs stir-fried with onions.
It's time for a late-night snack, friends! There's onion scrambled eggs and grilled meat 🍖
Has Amu eaten? @lea_coste

Anthropic’s IPO is here! Can 100 USDT get you a ticket to invest in an AI giant this time?

Investing in AI giants used to seem like a game for big-money investors. Now, Gate has launched the third round of its Anthropic IPO access program, allowing you to participate in an indication-of-interest subscription with just 100 USDT.
The reference subscription price is $70–$78 per share, with a fully diluted valuation of up to $1.4 trillion.
If you receive an allocation, the shares will be distributed directly to your Gate stock account, with no lockup period. Funds for unallocated shares will be r

58.2% of @Polymarket’s US trading volume in October came from bundled predictions.
According to TickerTracker:
> Total turnover: $14.77B
> Combo contracts: $8.6B
> Other contracts: $6.17B
Nearly 6 out of every 10 dollars of face-value turnover came from contracts combining multiple outcomes.
This is closer to sports betting accumulators than traditional yes/no prediction markets.
Users combine outcomes for potentially higher payouts, but one wrong prediction can ruin the entire position.
I think bundled markets could become a major revenue driver for Polymarket.
But $8.6B in turnover isn’t $8.

#每周来晒
#美国10月CPI全面超预期
October 2026 CPI at 0.4% headline and 0.3% core reinforces sticky inflation, strengthens the case for a hawkish Federal Reserve, delays any near-term rate-cut hopes, and creates near-term headwinds for risk assets including Bitcoin and equities while pressuring gold via higher real yields and a firmer dollar.

The Bureau of Labor Statistics reported that the Consumer Price Index for All Urban Consumers rose 0.4 percent on a seasonally adjusted basis in October, exceeding the consensus forecast of 0.3 percent. Core CPI, which excludes food and energy, advanced 0.3 percent

Only looking at gainers and losers to chase strong coins is the most common pitfall in cross-sectional trading—the top gainer has often already priced in the full risk premium, while true relative strength depends on capital efficiency and structural positioning within the same sector. The current Fear & Greed Index is 29, with the market in fear territory; in this environment, it matters more which assets hold up in a weak market.
$ICP is currently at 2.529, up 5.24% over 24h, with a trading volume of 6.8M USDT. Compared with the similarly active $SNDKB , which is up 8.42% over 24h and has a

$JCT I'm currently down 200U; either get me to 004, or I'll stick with you

OPERATION RED SPARROW
Mission Impossible

According to Bitcoin.com News, Deutsche Bank has expanded the scope of its license to provide digital asset custody services to the European Economic Area through the legal passporting mechanism. The service supports Bitcoin, Ethereum, and three stablecoins—USDC, EURC, and EURAU—and is available only to institutional clients, including corporations, hedge funds, asset managers, brokers, custodians, and sovereign entities. Clients can access the service through Deutsche Bank’s Autobahn and Corporate Bank portals, with online or offline storage options.

Why can a more perfect backtest sometimes warrant more caution?

In cryptocurrency trading, there is something particularly good at inspiring confidence: a beautiful backtest curve.

A high win rate, steadily growing returns, a very small maximum drawdown, and profits in almost every market phase.

It seems this strategy has already found the market’s patterns.

But the problem is: if a strategy is developed by repeatedly adjusting historical data, it may have learned not market patterns, but accidental features in the historical data.

This is the core risk of strategy overfitting.

I. Why is

🛡️ BITCOIN CORE FIXES 3 MAJOR SECURITY BUGS!
One bug could prevent miners from creating new blocks
Two others could disrupt transactions and weaken user privacy
All 3 bugs were patched in an October 2025 update
Details made public nearly a year later
$BTC users are safe!