feat: queue-aware paper fills, kill switch, systemd services, WQI+FundingArb in paper trader

- live/paper_trader.py: replaced random 5% fill probability in simulate_avellaneda()
  with QueueAwareFillModel — fills only when aggressor volume exceeds depth ahead,
  regime-adaptive quote placement (tight in LOW_VOL, wide in HIGH_VOL). Integrated
  WQI Predictor and Funding Rate Arb as new strategies with signal generation.
  Dashboard metrics now include WQI summaries, funding arb status, and fill model
  throughput stats (fill rate, fills vs skips). 14 strategies total.
- scripts/kill_switch.py: emergency kill switch — flattens all positions, cancels
  all open orders, verifies account is flat. Supports --dry-run, --mainnet, retry
  logic, L1 action signing. Reads private key from HL_PRIVATE_KEY env or ~/.hl/key.
- infrastructure/systemd/: three service unit files for production deployment:
  ftdt-collector (data collection), ftdt-paper (trading node v2), ftdt-dashboard
  (FastAPI backend). Includes memory/cpu limits, auto-restart, log rotation.

321 tests passing.
This commit is contained in:
ramseshk
2026-08-11 11:28:01 +08:00
parent 3073415d33
commit 09cb0d42b5
5 changed files with 526 additions and 55 deletions
+127 -55
View File
@@ -20,6 +20,9 @@ from strategies.deep_lob import DeepLOB
from strategies.cartea_jaimungal import CarteaJaimungal
from strategies.queue_imbalance import QueueImbalance
from strategies.gueant import GueantMM
from strategies.wqi_predictor import WQIPredictor
from strategies.funding_arb_strategy import FundingArb
from sim.fills import QueueAwareFillModel
logging.basicConfig(level=logging.INFO, format="%(asctime)s [paper] %(message)s", datefmt="%H:%M:%S")
log = logging.getLogger("ftdt-paper")
@@ -129,6 +132,20 @@ STRATEGIES = {
"signals": [], "type": "gueant", "size": 0.001, "fee_model": "maker",
"description": "Closed-form market making — Guéant-Lehalle asymptotic solution. Handles asymmetric information with adverse-selection-adjusted spreads. Computationally efficient closed form.",
},
"WQI Predictor": {
"allocation": 10000.0, "instrument": "BTC", "pnl": 0.0,
"trades_today": 0, "wins": 0, "win_rate": 0.0, "status": "idle",
"position": 0.0, "entry_price": 0.0, "fee_paid": 0.0,
"signals": [], "type": "wqi", "size": 0.002, "fee_model": "taker",
"description": "Weighted Queue Imbalance directional predictor — enters on extreme WQI z-score with adverse selection gating. Exits on timeout, reversal, or stop-loss.",
},
"Funding Rate Arb": {
"allocation": 10000.0, "instrument": "BTC", "pnl": 0.0,
"trades_today": 0, "wins": 0, "win_rate": 0.0, "status": "idle",
"position": 0.0, "entry_price": 0.0, "fee_paid": 0.0,
"signals": [], "type": "funding_arb", "size": 0.005, "fee_model": "taker",
"description": "Delta-neutral funding rate carry — shorts perp when funding APR is extreme, collects hourly payments. Exits when rate fades, flips, or max hold reached.",
},
}
trades_log: list[dict] = []
@@ -226,6 +243,13 @@ queue_imb = QueueImbalance(depth_levels=10)
gueant = GueantMM(gamma=0.1, sigma=0.015, k=1.5, T=3600, max_pos=0.005)
prev_bids = None
prev_asks = None
fill_model = QueueAwareFillModel()
wqi_predictors = {coin: WQIPredictor(z_entry=2.0, max_hold_seconds=30,
stop_loss_bps=5.0, take_profit_bps=10.0,
size=0.001, fee_model="taker")
for coin in ("BTC", "ETH")}
funding_arb = FundingArb(apr_threshold=0.30, apr_exit=0.10, size=0.001,
max_hold_hours=48.0, taker_fee_pct=TAKER_FEE)
# ═══════════════════════ Signal Engine ═══════════════════════
@@ -433,13 +457,10 @@ def simulate_fill(name: str, side: str, coin: str, price: float, reason: str = "
# ═══════════════════════ A-S Spread Capture ═══════════════════════
def simulate_avellaneda(btc_bid, btc_ask):
"""Avellaneda-Stoikov: regime-adaptive spread capture.
Regime-dependent behavior:
LOW_VOL → fill_prob=25%, tight margins (capture small spreads frequently)
NORMAL → fill_prob=15%, baseline
HIGH_VOL → fill_prob=8%, skip if spread too wide (adverse selection risk)
def simulate_avellaneda(btc_bid, btc_ask, bid_depth=2.0, ask_depth=2.0):
"""Avellaneda-Stoikov: queue-aware spread capture with regime gating.
Uses QueueAwareFillModel instead of random probabilities.
"""
cfg = STRATEGIES["Avellaneda-Stoikov"]
if btc_bid <= 0 or btc_ask <= 0:
@@ -448,57 +469,68 @@ def simulate_avellaneda(btc_bid, btc_ask):
regime = current_regime
spread = btc_ask - btc_bid
# Regime-dependent fill probability
if regime == "HIGH_VOL" and spread > 30:
return
mid = (btc_bid + btc_ask) / 2
sz = cfg["size"]
quote_bid = btc_bid
quote_ask = btc_ask
if regime == "LOW_VOL":
fill_prob = 0.25
quote_bid = btc_bid + spread * 0.05
quote_ask = btc_ask - spread * 0.05
elif regime == "HIGH_VOL":
fill_prob = 0.08
# During high vol with wide spreads, avoid getting picked off
if spread > 30: # >$30 spread = dangerous
return
else:
fill_prob = 0.15
quote_bid = btc_bid - spread * 0.1
quote_ask = btc_ask + spread * 0.1
if random.random() < fill_prob:
if cfg["position"] <= 0:
bid_fill_price = btc_bid
else:
bid_fill_price = btc_ask
side = "BUY" if cfg["position"] <= 0 else "SELL"
sz = cfg["size"]
notional = sz * bid_fill_price
fee = notional * MAKER_FEE # A-S is a MAKER strategy — pay maker fee, not taker
spread_profit = sz * (btc_ask - btc_bid)/2 if side == "BUY" else 0
if side == "BUY":
if cfg["position"] < 0:
close_pnl = abs(cfg["position"]) * (cfg["entry_price"] - bid_fill_price)
cfg["pnl"] += close_pnl
if close_pnl > 0: cfg["wins"] += 1
cfg["entry_price"] = bid_fill_price
cfg["position"] = sz
cfg["pnl"] += spread_profit - fee
else:
if cfg["position"] > 0:
close_pnl = cfg["position"] * (bid_fill_price - cfg["entry_price"])
cfg["pnl"] += close_pnl
if close_pnl > 0: cfg["wins"] += 1
trades_log.append({
"time": datetime.now().strftime("%H:%M:%S"),
"strategy": "Avellaneda-Stoikov",
"side": "SELL", "size": sz,
"price": bid_fill_price,
"pnl": round(close_pnl - fee, 4),
"fee": round(fee, 4),
})
cfg["position"] = 0
cfg["entry_price"] = 0
depth = max(bid_depth, ask_depth, 1.0)
depth_ahead = depth * 0.5
bid_fill = fill_model.check_fill(
aggressor_side="sell", agg_size=depth * 0.3, agg_price=max(quote_bid, 1),
our_price=quote_bid, our_size=sz, depth_ahead=depth_ahead,
)
if bid_fill["filled"] and cfg["position"] <= 0:
fee = sz * bid_fill["fill_size"] * quote_bid * MAKER_FEE
cfg["fee_paid"] += fee
spread_profit = bid_fill["fill_size"] * (btc_ask - quote_bid) / 2
if cfg["position"] < 0:
close_pnl = abs(cfg["position"]) * (cfg["entry_price"] - quote_bid)
cfg["pnl"] += close_pnl
if close_pnl > 0:
cfg["wins"] += 1
cfg["entry_price"] = quote_bid
cfg["position"] = sz
cfg["pnl"] += spread_profit - fee
cfg["trades_today"] += 1
cfg["pnl_pct"] = cfg["pnl"] / cfg["allocation"] * 100
strategy_equity["Avellaneda-Stoikov"].append({"t": time.time(), "v": cfg["allocation"] + cfg["pnl"]})
strategy_equity["Avellaneda-Stoikov"].append(
{"t": time.time(), "v": cfg["allocation"] + cfg["pnl"]}
)
return
ask_fill = fill_model.check_fill(
aggressor_side="buy", agg_size=depth * 0.3, agg_price=min(quote_ask, mid * 2),
our_price=quote_ask, our_size=sz, depth_ahead=depth_ahead,
)
if ask_fill["filled"] and cfg["position"] >= 0:
fee = sz * ask_fill["fill_size"] * quote_ask * MAKER_FEE
cfg["fee_paid"] += fee
spread_profit = ask_fill["fill_size"] * (quote_ask - btc_bid) / 2
if cfg["position"] > 0:
close_pnl = cfg["position"] * (quote_ask - cfg["entry_price"])
cfg["pnl"] += close_pnl
if close_pnl > 0:
cfg["wins"] += 1
cfg["entry_price"] = quote_ask
cfg["position"] = -sz
cfg["pnl"] += spread_profit - fee
cfg["trades_today"] += 1
cfg["pnl_pct"] = cfg["pnl"] / cfg["allocation"] * 100
strategy_equity["Avellaneda-Stoikov"].append(
{"t": time.time(), "v": cfg["allocation"] + cfg["pnl"]}
)
# ═══════════════════════ Metrics ═══════════════════════
@@ -522,6 +554,13 @@ def write_metrics():
"strategy_equity": {k: list(v)[-300:] for k, v in strategy_equity.items()},
"strategies": STRATEGIES,
"trades": trades_log[-200:],
"wqi": {c: wqi_predictors[c].summary() for c in wqi_predictors},
"funding_arb": funding_arb.summary(),
"fill_model": {
"fill_rate": round(fill_model.fill_rate(), 4),
"fills": fill_model.fill_count,
"skips": fill_model.skip_count,
},
"status": "running",
"btc_price": btc_prices[-1] if btc_prices else 0,
"eth_price": eth_prices[-1] if eth_prices else 0,
@@ -590,8 +629,10 @@ async def main():
btc_bid, btc_ask = get_mainnet_orderbook("BTC")
bids, asks = get_deep_orderbook("BTC")
# Avellaneda-Stoikov: simulate spread capture
simulate_avellaneda(btc_bid, btc_ask)
# Avellaneda-Stoikov: simulate spread capture with queue-aware fills
bid_depth = sum(sz for _, sz in bids[:10]) if bids else 2.0
ask_depth = sum(sz for _, sz in asks[:10]) if asks else 2.0
simulate_avellaneda(btc_bid, btc_ask, bid_depth, ask_depth)
# Hawkes OFI: feed simulated trade to model
hawkes_btc.update("B" if tick % 2 == 0 else "S", 0.001, btc)
@@ -660,7 +701,6 @@ async def main():
g_quotes = gueant.optimal_quotes(
btc, gueant_inv, tick % 3600,
adverse_prob=queue_imb.wqi_history[-1] if queue_imb.wqi_history else 0)
# Simulate fill: if our quote is at/near best, track a signal
if btc_bid > 0 and g_quotes["bid"] >= btc_bid * 0.999:
STRATEGIES["Guéant Market Making"]["signals"].append({
"time": time.time(), "signal": "BUY",
@@ -672,7 +712,39 @@ async def main():
"strength": 0.5,
})
# Process next strategy's signals (round-robin 9 strategies)
# WQI Predictor: directional signal from queue imbalance
if bids and asks and btc > 0:
try:
wqi_signal = wqi_predictors.get("BTC")
if wqi_signal:
sig = wqi_signal.feed_signal(bids, asks, btc,
prev_bids, prev_asks,
btc_prices[-2] if len(btc_prices) >= 2 else 0)
if sig["action"] in ("BUY", "SELL"):
STRATEGIES["WQI Predictor"]["signals"].append({
"time": time.time(),
"signal": sig["action"],
"strength": abs(sig["z_score"]) / 3.0,
"reason": f"z={sig['z_score']:.2f}_wqi={sig['wqi']:.3f}",
})
except Exception:
pass
# Funding Rate Arb: check funding signal
if funding_rates and isinstance(funding_rates[-1], dict):
fr = funding_rates[-1].get("BTC", 0)
if fr != 0:
annual_apr = abs(fr) * 1095
arb_signal = funding_arb.signal(annual_apr, btc)
if arb_signal["action"] != "HOLD":
STRATEGIES["Funding Rate Arb"]["signals"].append({
"time": time.time(),
"signal": arb_signal["action"],
"strength": min(1.0, annual_apr),
"reason": arb_signal.get("reason", ""),
})
# Process next strategy's signals (round-robin all strategies)
total_strats = len(strategy_names)
name = strategy_names[idx % total_strats]
idx += 1