https://rektcalc.com/blog/ Honest, data-backed crypto futures research: liquidation, funding, fees and backtests. No hype. en Sun, 26 Jul 2026 20:01:53 +0000 https://rektcalc.com/blog/funding-bleed-liquidation.html https://rektcalc.com/blog/funding-bleed-liquidation.html Sun, 26 Jul 2026 00:00:00 +0000 Funding fees are charged on your full notional and eat your margin. At 0.1%/8h a 10x perp bleeds to liquidation in about 32 days even if price never moves. The real funding-decay math, with a table. https://rektcalc.com/blog/why-my-shortest-trades-lost-the-most.html https://rektcalc.com/blog/why-my-shortest-trades-lost-the-most.html Sat, 25 Jul 2026 00:00:00 +0000 Across 43 of my bot's trades, the ones I held under 10 minutes ran an 18% win rate and lost $7.47. The 10-30 minute band did 69% and made $5.05. Hold time, not the entry signal, was the biggest predictor of profit. https://rektcalc.com/blog/trend-filter-cut-drawdown.html https://rektcalc.com/blog/trend-filter-cut-drawdown.html Thu, 23 Jul 2026 00:00:00 +0000 One filter — hold while price is above its 200-day average, else sit in cash — took my worst backtest drawdown from -26% to -7% and roughly doubled the Sharpe. The real numbers and why it matters more with leverage. https://rektcalc.com/blog/bybit-vs-okx.html https://rektcalc.com/blog/bybit-vs-okx.html Sun, 19 Jul 2026 00:00:00 +0000 Bybit vs OKX side-by-side: spot and futures fees, copy trading, Web3 wallet, coin coverage and sign-up bonuses. Which exchange suits you in 2026? https://rektcalc.com/blog/koinly-vs-coinledger.html https://rektcalc.com/blog/koinly-vs-coinledger.html Sat, 18 Jul 2026 00:00:00 +0000 Side-by-side comparison of Koinly and CoinLedger for 2026. Integrations, pricing, DeFi support, and which to pick based on your trading history. https://rektcalc.com/blog/four-strategies-i-killed.html https://rektcalc.com/blog/four-strategies-i-killed.html Fri, 17 Jul 2026 00:00:00 +0000 Volume reversal at 7% win rate. Range-reject shorts at PF 0.34. Naive DCA hiding a 61% rescue rate. Fee-blind scalping. Four real failures, four actual numbers. https://rektcalc.com/blog/win-rate-lies-dca-dependency.html https://rektcalc.com/blog/win-rate-lies-dca-dependency.html Fri, 17 Jul 2026 00:00:00 +0000 I tested two coins with the same strategy. One won 55% of trades, the other 37%. Win rate told me nothing useful. DCA dependency told me everything. https://rektcalc.com/blog/binance-vs-bybit-liquidation-prices.html https://rektcalc.com/blog/binance-vs-bybit-liquidation-prices.html Wed, 15 Jul 2026 00:00:00 +0000 Same position, two exchanges — different liquidation prices. We compare Binance vs Bybit maintenance margin rates for BTC and ETH at 10×, 20× and 50× leverage. The difference can be hundreds of dollars per BTC. https://rektcalc.com/blog/what-50x-leverage-actually-did-btc.html https://rektcalc.com/blog/what-50x-leverage-actually-did-btc.html Wed, 15 Jul 2026 00:00:00 +0000 We ran BTC's real 2021–2022 daily wick data through a 50× leverage scenario. Here's what happened: which corrections wiped 50× positions, how much margin was needed to survive each dip, and what the actual liquidation prices were. https://rektcalc.com/blog/most-expensive-perpetual-pairs-july-2026.html https://rektcalc.com/blog/most-expensive-perpetual-pairs-july-2026.html Tue, 14 Jul 2026 00:00:00 +0000 Which crypto perpetual contracts charged the most funding in July 2026? Real funding rate data across BTC, ETH, SOL, DOGE, PEPE and 20+ altcoin pairs on Binance and Bybit. https://rektcalc.com/blog/how-much-traders-paid-btc-funding-this-week.html https://rektcalc.com/blog/how-much-traders-paid-btc-funding-this-week.html Sun, 12 Jul 2026 00:00:00 +0000 Real funding rate data from Binance, week of July 15 2026. BTC longs paid 0.010% per 8h — $21/week on a $10k position. Some exotic pairs hit 397% APR. The full breakdown with dollar costs. https://rektcalc.com/blog/90-days-of-wicks-leverage-survival.html https://rektcalc.com/blog/90-days-of-wicks-leverage-survival.html Sat, 11 Jul 2026 00:00:00 +0000 We measured every daily candle on BTC, ETH, SOL, XRP, BNB and DOGE for 90 days. A 100x long opened at the day's open was liquidated 3 days out of 4. https://rektcalc.com/blog/exchange-fee-comparison-1000-trades.html https://rektcalc.com/blog/exchange-fee-comparison-1000-trades.html Fri, 10 Jul 2026 00:00:00 +0000 Bybit charges 0.055% taker, Binance 0.05%. Sounds like nothing — but 1,000 round trips at 10x on $100 collateral costs $1,100 on Bybit vs $1,000 on Binance. https://rektcalc.com/blog/funding-arbitrage-opportunities-disappeared-after-fees.html https://rektcalc.com/blog/funding-arbitrage-opportunities-disappeared-after-fees.html Fri, 10 Jul 2026 00:00:00 +0000 We tracked 30 days of cross-exchange funding spreads. Most 'opportunities' vanished after taker fees and withdrawal costs. Here's what actually survived. https://rektcalc.com/blog/how-to-calculate-liquidation-price.html https://rektcalc.com/blog/how-to-calculate-liquidation-price.html Fri, 10 Jul 2026 00:00:00 +0000 The exact formula for liquidation price on long and short positions, worked examples at 10x/25x/50x, and the one thing most traders miss: your stop-loss can be… https://rektcalc.com/blog/fear-greed-index-actually-predict-bitcoin.html https://rektcalc.com/blog/fear-greed-index-actually-predict-bitcoin.html Wed, 08 Jul 2026 00:00:00 +0000 We ran 4 years of Crypto Fear & Greed data. Extreme Fear zones averaged +8.4% over 30 days. Extreme Greed averaged -4.2%. But the variance is enormous — and the 2022 bear market broke every naive buy signal. https://rektcalc.com/blog/stop-loss-past-liquidation.html https://rektcalc.com/blog/stop-loss-past-liquidation.html Wed, 08 Jul 2026 00:00:00 +0000 At 50x leverage, your liquidation price is only 1.5% from entry. A 3% stop loss is set below that — it will never fire. You'll be liquidated before it triggers. https://rektcalc.com/blog/cheapest-exchange-10k-btc-trade.html https://rektcalc.com/blog/cheapest-exchange-10k-btc-trade.html Mon, 06 Jul 2026 00:00:00 +0000 We ran the exact fee math for a $10,000 BTC futures trade across Bybit, Binance, OKX, KuCoin, Bitget, Gate.io and MEXC. Maker vs taker, native token discounts, and annual cost for active traders. https://rektcalc.com/blog/funding-can-liquidate-a-position-that-never-moved.html https://rektcalc.com/blog/funding-can-liquidate-a-position-that-never-moved.html Mon, 06 Jul 2026 00:00:00 +0000 Funding is charged on your whole position but paid out of your margin, so at leverage a 0.01% rate is a big daily bleed. https://rektcalc.com/blog/why-dca-looks-profitable-but-isnt.html https://rektcalc.com/blog/why-dca-looks-profitable-but-isnt.html Sat, 04 Jul 2026 00:00:00 +0000 DCA into a falling asset lowers your average price — but your real equity is still down the same amount. We ran the numbers on BTC DCA from 2021 peaks: the average entry dropped 45% but the portfolio was still -38%. Here's the hidden math. https://rektcalc.com/blog/martingale-how-many-losses-until-ruin.html https://rektcalc.com/blog/martingale-how-many-losses-until-ruin.html Fri, 03 Jul 2026 00:00:00 +0000 Martingale — double your position after every loss — feels unbeatable because you win small and often. https://rektcalc.com/blog/what-is-liquidation-crypto.html https://rektcalc.com/blog/what-is-liquidation-crypto.html Thu, 02 Jul 2026 00:00:00 +0000 Liquidation happens when your margin runs out and the exchange forcibly closes your position. Learn the exact formula, how long vs short liquidation differs, cross vs isolated margin, and how to calculate your liquidation price. https://rektcalc.com/blog/five-longs-are-one-bet-portfolio-heat.html https://rektcalc.com/blog/five-longs-are-one-bet-portfolio-heat.html Wed, 01 Jul 2026 00:00:00 +0000 Risking 2% per trade feels safe until you're in five correlated crypto longs at once — that's 10% of your account on one Bitcoin candle. https://rektcalc.com/blog/liquidation-cushion-in-average-days.html https://rektcalc.com/blog/liquidation-cushion-in-average-days.html Mon, 29 Jun 2026 00:00:00 +0000 A 1.5% cushion to liquidation sounds survivable until you measure it against how much the coin actually moves. https://rektcalc.com/blog/fee-drag-eats-active-traders.html https://rektcalc.com/blog/fee-drag-eats-active-traders.html Sat, 27 Jun 2026 00:00:00 +0000 Futures fees look tiny — 0.06% a side. But they're charged on notional, so leverage multiplies them, and frequency compounds them. https://rektcalc.com/blog/copy-trading-real-math.html https://rektcalc.com/blog/copy-trading-real-math.html Wed, 24 Jun 2026 00:00:00 +0000 A copy-trading leaderboard shows the gross return and hides two things: the lead's drawdown and the profit-share fee. https://rektcalc.com/blog/position-size-decides-survival.html https://rektcalc.com/blog/position-size-decides-survival.html Sun, 21 Jun 2026 00:00:00 +0000 Risk too much per trade and a normal losing streak wipes you out — even with a winning strategy. https://rektcalc.com/blog/liquidation-distance-by-leverage.html https://rektcalc.com/blog/liquidation-distance-by-leverage.html Fri, 19 Jun 2026 00:00:00 +0000 Your liquidation distance is almost exactly 100% divided by your leverage, minus a little for maintenance margin and fees. https://rektcalc.com/blog/funding-fees-bleed-held-positions.html https://rektcalc.com/blog/funding-fees-bleed-held-positions.html Wed, 17 Jun 2026 00:00:00 +0000 Funding is charged every 8 hours on your whole position, not your margin. At 0.01% it's ~11%/yr of notional; at 20x that's 0.6% of your margin a day. https://rektcalc.com/blog/how-fees-kill-scalping.html https://rektcalc.com/blog/how-fees-kill-scalping.html Mon, 15 Jun 2026 00:00:00 +0000 A round-trip taker fee is about 0.11% — tiny, until you scalp 10 times a day at 20x. https://rektcalc.com/blog/revenge-trading-math.html https://rektcalc.com/blog/revenge-trading-math.html Sat, 13 Jun 2026 00:00:00 +0000 We simulated 40,000 traders down 20%, then let them either revenge-trade it back fast or grind it back at 2% risk. https://rektcalc.com/blog/risk-of-ruin-60-percent.html https://rektcalc.com/blog/risk-of-ruin-60-percent.html Thu, 11 Jun 2026 00:00:00 +0000 A 60% win rate sounds unbeatable — yet risk 20% per trade and you have a 45% chance of blowing up. https://rektcalc.com/blog/cheapest-way-to-send-usdt.html https://rektcalc.com/blog/cheapest-way-to-send-usdt.html Wed, 10 Jun 2026 00:00:00 +0000 Everyone says use Tron for USDT. I checked the live fees and right now Tron is the most expensive option by far. https://rektcalc.com/blog/bill-96-win-rate-dca.html https://rektcalc.com/blog/bill-96-win-rate-dca.html Tue, 09 Jun 2026 00:00:00 +0000 Out of 386 coins I backtested, only four cleared the bar — and BILL looked like the safe one: 96.7% win rate, a 5% drawdown. Then I looked at the DCA column. https://rektcalc.com/blog/liquidation-price-by-leverage.html https://rektcalc.com/blog/liquidation-price-by-leverage.html Tue, 09 Jun 2026 00:00:00 +0000 The exact move against you that triggers liquidation at 5x, 10x, 25x, 50x, 100x and 125x. A simple table, the formula behind it, and why the high numbers are a trap. https://rektcalc.com/blog/what-actually-worked-trend-following.html https://rektcalc.com/blog/what-actually-worked-trend-following.html Mon, 08 Jun 2026 00:00:00 +0000 After scalping, DCA and leverage all failed my backtests, one dull idea kept winning: hold while price is above its 200-day average, sit in cash when it's below. https://rektcalc.com/blog/crypto-trend-vs-scalping.html https://rektcalc.com/blog/crypto-trend-vs-scalping.html Sun, 07 Jun 2026 00:00:00 +0000 Scalping crypto bled fees. So I tested the opposite — hold BTC, ETH and SOL for weeks while they trend, sit in cash when they don't. https://rektcalc.com/blog/leverage-variance-drag.html https://rektcalc.com/blog/leverage-variance-drag.html Sat, 06 Jun 2026 00:00:00 +0000 Cranking leverage feels like cranking returns. It isn't. Eighteen years of data show higher leverage often makes LESS money — and eventually zero. https://rektcalc.com/blog/dca-illusion.html https://rektcalc.com/blog/dca-illusion.html Fri, 05 Jun 2026 00:00:00 +0000 DCA feels like a winning strategy because your average price drops. But realized return is the honest number. https://rektcalc.com/blog/scalping-backtest-truth.html https://rektcalc.com/blog/scalping-backtest-truth.html Fri, 05 Jun 2026 00:00:00 +0000 A high win rate doesn't mean a profitable strategy. After thousands of backtested crypto scalping configs over two years, here's why most short-term edges… https://rektcalc.com/blog/96-percent-win-rate-trap.html https://rektcalc.com/blog/96-percent-win-rate-trap.html Thu, 04 Jun 2026 00:00:00 +0000 A real GPU backtest gave one altcoin a 96% win rate and a 3.3 profit factor. Then I looked at how it actually won — and quietly closed the tab. https://rektcalc.com/blog/85-million-backtests-gpu.html https://rektcalc.com/blog/85-million-backtests-gpu.html Wed, 03 Jun 2026 00:00:00 +0000 386 coins, 220,000 configurations each, one RTX 3070, five hours. https://rektcalc.com/blog/33-vs-96-win-rate.html https://rektcalc.com/blog/33-vs-96-win-rate.html Tue, 02 Jun 2026 00:00:00 +0000 In the same backtest, one setup won 33% of the time and another won 97%. The profit factors told the opposite story.