diff --git a/src/main_ml_v04.py b/src/main_ml_v04.py
new file mode 100644
index 0000000..97b70a1
--- /dev/null
+++ b/src/main_ml_v04.py
@@ -0,0 +1,245 @@
+#!/usr/bin/env python3
+'''Trading Bot v0.4 - Dynamic Position Sizing'''
+import os, json, time, logging
+from datetime import datetime
+from dotenv import load_dotenv
+from binance.client import Client
+from binance.exceptions import BinanceAPIException
+
+logging.basicConfig(level=logging.INFO, format='%(asctime)s | %(message)s')
+logger = logging.getLogger()
+
+load_dotenv()
+API_KEY = os.getenv('BINANCE_API_KEY_LIVE')
+API_SECRET = os.getenv('BINANCE_API_SECRET_LIVE')
+
+if not API_KEY or not API_SECRET:
+    logger.error("Missing API keys")
+    exit(1)
+
+# CONSTANTS - DYNAMIC SIZING
+SYMBOLS = ['BTCUSDT', 'ETHUSDT', 'BNBUSDT', 'XRPUSDT', 'SOLUSDT']
+TRACKED_COINS = ['BTC', 'ETH', 'BNB', 'XRP', 'SOL']
+MIN_USDT = 5.00
+MAX_POSITION_PCT = 0.05
+TAKE_PROFIT_PCT = 0.015
+STOP_LOSS_PCT = -0.008
+CYCLE_SEC = 60
+
+class TradingBotV04:
+    def __init__(self):
+        self.client = Client(API_KEY, API_SECRET)
+        self.price_history = {sym: [] for sym in SYMBOLS}
+        self.active_trades = {}
+        self.portfolio_value = 0
+        self.max_trade_usdt = 0
+        logger.info("[v0.4 INIT] Bot initialized | Dynamic Position Sizing")
+    
+    def get_fresh_balance(self):
+        try:
+            account = self.client.get_account()
+            portfolio_value = 0
+            
+            prices = {'USDT': 1.0}
+            for symbol in SYMBOLS:
+                try:
+                    ticker = self.client.get_ticker(symbol=symbol)
+                    coin = symbol.replace('USDT', '')
+                    prices[coin] = float(ticker['lastPrice'])
+                except:
+                    pass
+            
+            for balance in account['balances']:
+                asset = balance['asset']
+                free = float(balance['free'])
+                
+                if asset in TRACKED_COINS:
+                    price = prices.get(asset, 0)
+                    portfolio_value += free * price
+                elif asset == 'USDT':
+                    portfolio_value += free
+            
+            usdt_available = next(
+                (float(b['free']) for b in account['balances'] if b['asset'] == 'USDT'),
+                0
+            )
+            
+            self.portfolio_value = portfolio_value
+            self.max_trade_usdt = max(MIN_USDT, portfolio_value * MAX_POSITION_PCT)
+            
+            logger.info(f"[v0.4] USDT=${usdt_available:.2f} | Portfolio=${portfolio_value:.2f} | MaxTrade=${self.max_trade_usdt:.2f}")
+            return usdt_available, portfolio_value
+            
+        except BinanceAPIException as e:
+            logger.error(f"Balance fetch failed: {e}")
+            return 0, 0
+    
+    def get_current_price(self, symbol):
+        try:
+            ticker = self.client.get_ticker(symbol=symbol)
+            return float(ticker['lastPrice'])
+        except:
+            return None
+    
+    def calculate_valid_quantity(self, symbol, usdt_amount):
+        try:
+            price = self.get_current_price(symbol)
+            if not price or price <= 0:
+                return 0
+            
+            info = self.client.get_symbol_info(symbol)
+            if not info:
+                return 0
+            
+            step_size = None
+            for f in info.get('filters', []):
+                if f['filterType'] == 'LOT_SIZE':
+                    step_size = float(f['stepSize'])
+                    break
+            
+            if not step_size or step_size <= 0:
+                return 0
+            
+            qty = usdt_amount / price
+            qty = int(qty / step_size) * step_size
+            
+            if qty * price < 5.0:
+                return 0
+            
+            return qty
+        except:
+            return 0
+    
+    def is_local_minimum(self, symbol):
+        if len(self.price_history[symbol]) < 5:
+            return False
+        
+        recent = self.price_history[symbol][-5:]
+        current = recent[-1]
+        
+        is_min = all(current < p for p in recent[:-1])
+        if is_min:
+            logger.info(f"[SIGNAL] Local min: {symbol} @ ${current:.2f}")
+        
+        return is_min
+    
+    def place_buy_order(self, symbol, usdt_amount):
+        try:
+            qty = self.calculate_valid_quantity(symbol, usdt_amount)
+            if qty <= 0:
+                return None
+            
+            price = self.get_current_price(symbol)
+            if not price:
+                return None
+            
+            order = self.client.order_market_buy(symbol=symbol, quantity=qty)
+            
+            self.active_trades[symbol] = {
+                'entry_price': price,
+                'qty': qty,
+                'order_id': order.get('orderId'),
+                'entry_time': datetime.now().isoformat()
+            }
+            
+            pos_pct = (qty * price / self.portfolio_value * 100) if self.portfolio_value > 0 else 0
+            logger.info(f"[BUY] {symbol} {qty} @ ${price:.2f} | Position: {pos_pct:.1f}% | [v0.4 DYNAMIC]")
+            
+            return order
+        except BinanceAPIException as e:
+            logger.error(f"Order failed: {e}")
+            return None
+    
+    def check_and_close_positions(self):
+        for symbol, trade in list(self.active_trades.items()):
+            try:
+                current = self.get_current_price(symbol)
+                if not current:
+                    continue
+                
+                entry = trade['entry_price']
+                qty = trade['qty']
+                pnl_pct = ((current - entry) / entry) * 100
+                
+                if pnl_pct >= TAKE_PROFIT_PCT * 100:
+                    logger.info(f"[SELL-TP] {symbol} @ ${current:.2f} | +{pnl_pct:.2f}%")
+                    try:
+                        self.client.order_market_sell(symbol=symbol, quantity=qty)
+                        del self.active_trades[symbol]
+                    except:
+                        pass
+                
+                elif pnl_pct <= STOP_LOSS_PCT * 100:
+                    logger.info(f"[SELL-SL] {symbol} @ ${current:.2f} | {pnl_pct:.2f}%")
+                    try:
+                        self.client.order_market_sell(symbol=symbol, quantity=qty)
+                        del self.active_trades[symbol]
+                    except:
+                        pass
+            except:
+                pass
+    
+    def run_cycle(self):
+        logger.info("=" * 70)
+        
+        usdt_free, portfolio_val = self.get_fresh_balance()
+        
+        if usdt_free < MIN_USDT:
+            logger.warning(f"Insufficient capital: ${usdt_free:.2f} < ${MIN_USDT}")
+            logger.info("=" * 70)
+            return
+        
+        self.check_and_close_positions()
+        
+        for symbol in SYMBOLS:
+            price = self.get_current_price(symbol)
+            if price:
+                self.price_history[symbol].append(price)
+                if len(self.price_history[symbol]) > 20:
+                    self.price_history[symbol].pop(0)
+        
+        best_signal = None
+        for symbol in SYMBOLS:
+            if symbol not in self.active_trades and self.is_local_minimum(symbol):
+                best_signal = symbol
+                break
+        
+        if best_signal and usdt_free >= MIN_USDT:
+            trade_amount = min(self.max_trade_usdt, usdt_free * 0.5)
+            self.place_buy_order(best_signal, trade_amount)
+        
+        logger.info(f"[CYCLE-END] Trades: {len(self.active_trades)} | USDT: ${usdt_free:.2f} | Portfolio: ${portfolio_val:.2f} [v0.4]")
+        
+        try:
+            temp = '/home/marc/bot-deploy/active_trades.json.tmp'
+            with open(temp, 'w') as f:
+                json.dump({
+                    'active_trades': self.active_trades,
+                    'count': len(self.active_trades),
+                    'portfolio_value': round(portfolio_val, 2),
+                    'max_trade_usdt': round(self.max_trade_usdt, 2),
+                    'timestamp': datetime.now().isoformat(),
+                    'version': 'v0.4-dynamic'
+                }, f)
+            os.replace(temp, '/home/marc/bot-deploy/active_trades.json')
+        except Exception as e:
+            logger.warning(f"Save failed: {e}")
+        
+        logger.info("=" * 70)
+
+if __name__ == '__main__':
+    import sys
+    
+    bot = TradingBotV04()
+    
+    if len(sys.argv) > 1 and sys.argv[1] == '--once':
+        bot.run_cycle()
+    else:
+        logger.info("[v0.4 START] Trading Bot cycle loop running...")
+        while True:
+            try:
+                bot.run_cycle()
+            except Exception as e:
+                logger.error(f"Cycle error: {e}")
+            
+            time.sleep(CYCLE_SEC)