diff --git a/services/trade-monitor/conditions.py b/services/trade-monitor/conditions.py
new file mode 100644
index 0000000..71e8932
--- /dev/null
+++ b/services/trade-monitor/conditions.py
@@ -0,0 +1,95 @@
+"""§6 조건 로직 (순수). ctx + params → firing 리스트."""
+from __future__ import annotations
+
+from indicators import sma, rsi_series, highest_high
+
+
+def _fire(ctx: dict, kind: str, condition: str, price: float, detail: dict) -> dict:
+    return {
+        "ticker": ctx["ticker"], "kind": kind,
+        "condition": condition, "price": price, "detail": detail,
+    }
+
+
+def evaluate_buy(ctx: dict, params: dict) -> list[dict]:
+    price = ctx["price"]
+    closes, highs, lows, vols = ctx["closes"], ctx["highs"], ctx["lows"], ctx["volumes"]
+    rsi_os = params.get("rsi_oversold", 30)
+    vol_mult = params.get("breakout_vol_mult", 1.5)
+    pullback = params.get("pullback_pct", 0.02)
+    firing: list[dict] = []
+
+    # buy_ma20_pullback — 정배열 + ma20 근접 저가 + 반등 복귀
+    ma20, ma50, ma200 = sma(closes, 20), sma(closes, 50), sma(closes, 200)
+    if ma20 and ma50 and ma200 and ma20 > ma50 > ma200 and len(lows) >= 3:
+        recent_low = min(lows[-3:])
+        if recent_low <= ma20 * (1 + pullback) and price > ma20:
+            firing.append(_fire(ctx, "buy", "buy_ma20_pullback", price, {
+                "ma20": round(ma20, 1), "ma50": round(ma50, 1),
+                "ma200": round(ma200, 1), "recent_low": recent_low,
+            }))
+
+    # buy_breakout — 직전 20봉 고점 돌파 + 거래량 배수
+    prior_high20 = highest_high(highs, 20)
+    avg_vol20 = sma(vols, 20)
+    if prior_high20 and avg_vol20 and price > prior_high20 \
+            and ctx["today_volume"] > vol_mult * avg_vol20:
+        firing.append(_fire(ctx, "buy", "buy_breakout", price, {
+            "prior_high_20": prior_high20,
+            "vol_mult": round(ctx["today_volume"] / avg_vol20, 2),
+            "avg_vol_20": round(avg_vol20, 0),
+        }))
+
+    # buy_rsi_bounce — RSI 과매도 후 반등 (무상태 재계산)
+    rs = rsi_series(closes, 14)
+    if len(rs) >= 3 and min(rs[-3:]) < rsi_os and rs[-1] > rsi_os and rs[-1] > rs[-2]:
+        firing.append(_fire(ctx, "buy", "buy_rsi_bounce", price, {
+            "rsi": round(rs[-1], 1), "rsi_prev": round(rs[-2], 1),
+            "rsi_oversold": rsi_os,
+        }))
+
+    return firing
+
+
+def evaluate_sell(ctx: dict, params: dict) -> list[dict]:
+    price = ctx["price"]
+    avg = ctx.get("avg_price")
+    hh = ctx.get("holding_high")
+    closes, vols = ctx["closes"], ctx["volumes"]
+    stop = params.get("stop_pct", 0.08)
+    take = params.get("take_pct", 0.25)
+    trail = params.get("trailing_pct", 0.10)
+    climax_mult = ctx.get("climax_vol_mult", 3.0)
+    firing: list[dict] = []
+
+    if avg:
+        pnl = (price - avg) / avg
+        if pnl <= -stop:
+            firing.append(_fire(ctx, "sell", "sell_stop_loss", price, {
+                "avg_price": avg, "pnl_pct": round(pnl, 4), "stop_pct": stop}))
+        if pnl >= take:
+            firing.append(_fire(ctx, "sell", "sell_take_profit", price, {
+                "avg_price": avg, "pnl_pct": round(pnl, 4), "take_pct": take}))
+
+    if hh and price <= hh * (1 - trail):
+        firing.append(_fire(ctx, "sell", "sell_trailing_stop", price, {
+            "holding_high": hh, "trailing_pct": trail,
+            "drawdown_pct": round((price - hh) / hh, 4)}))
+
+    ma50, ma200 = sma(closes, 50), sma(closes, 200)
+    if ma50 and price < ma50:
+        severity = "high" if (ma200 and price < ma200) else "normal"
+        firing.append(_fire(ctx, "sell", "sell_ma_break", price, {
+            "ma50": round(ma50, 1),
+            "ma200": round(ma200, 1) if ma200 else None,
+            "severity": severity}))
+
+    # sell_climax — 휴리스틱(추후 holdings_intel 정합): 거래량 급증 + 반전 캔들
+    avg_vol20 = sma(vols, 20)
+    if avg_vol20 and ctx["today_volume"] >= climax_mult * avg_vol20 \
+            and price < ctx["day_open"]:
+        firing.append(_fire(ctx, "sell", "sell_climax", price, {
+            "vol_mult": round(ctx["today_volume"] / avg_vol20, 2),
+            "day_open": ctx["day_open"]}))  # TODO: holdings_intel 대조
+
+    return firing
diff --git a/services/trade-monitor/tests/test_conditions_buy.py b/services/trade-monitor/tests/test_conditions_buy.py
new file mode 100644
index 0000000..a9eb833
--- /dev/null
+++ b/services/trade-monitor/tests/test_conditions_buy.py
@@ -0,0 +1,66 @@
+"""evaluate_buy — 3개 매수 조건 경계."""
+from conditions import evaluate_buy
+
+BUY_PARAMS = {"rsi_oversold": 30, "breakout_vol_mult": 1.5, "pullback_pct": 0.02}
+
+
+def _ctx(**over):
+    base = dict(
+        ticker="005930", name="삼성전자", price=100.0, day_open=99.0,
+        today_volume=1000.0, closes=[], highs=[], lows=[], volumes=[],
+        avg_price=None, qty=None, holding_high=None, climax_vol_mult=3.0,
+    )
+    base.update(over)
+    return base
+
+
+def _conditions(firing):
+    return {f["condition"] for f in firing}
+
+
+def test_ma20_pullback_fires():
+    # 정배열(ma20>ma50>ma200), 최근 저가가 ma20 근처, price가 ma20 위로 반등
+    closes = [90.0] * 200 + [100.0] * 20   # ma20=100, ma50/ma200 낮음 → 정배열
+    lows = [90.0] * 217 + [100.5, 100.4, 100.3]  # 최근 3봉 저가 ~ma20*(1.02)=102 이하
+    ctx = _ctx(price=101.0, closes=closes, highs=closes, lows=lows,
+               volumes=[1.0] * len(closes))
+    assert "buy_ma20_pullback" in _conditions(evaluate_buy(ctx, BUY_PARAMS))
+
+
+def test_ma20_pullback_skips_when_not_aligned():
+    closes = [100.0] * 200 + [90.0] * 20   # 역배열
+    ctx = _ctx(price=91.0, closes=closes, highs=closes, lows=closes,
+               volumes=[1.0] * len(closes))
+    assert "buy_ma20_pullback" not in _conditions(evaluate_buy(ctx, BUY_PARAMS))
+
+
+def test_breakout_fires():
+    closes = [50.0] * 25
+    highs = [60.0] * 25           # 직전 20봉 최고 60
+    vols = [100.0] * 25           # avg20=100
+    ctx = _ctx(price=61.0, today_volume=200.0, closes=closes, highs=highs,
+               lows=closes, volumes=vols)   # 61>60, 200>1.5*100
+    assert "buy_breakout" in _conditions(evaluate_buy(ctx, BUY_PARAMS))
+
+
+def test_breakout_skips_on_low_volume():
+    highs = [60.0] * 25
+    ctx = _ctx(price=61.0, today_volume=120.0, closes=[50.0] * 25, highs=highs,
+               lows=[50.0] * 25, volumes=[100.0] * 25)  # 120 < 1.5*100=150
+    assert "buy_breakout" not in _conditions(evaluate_buy(ctx, BUY_PARAMS))
+
+
+def test_rsi_bounce_fires():
+    # 14봉 급락으로 RSI<30 찍고 5봉 반등하여 30 위로 복귀
+    closes = [100.0]
+    for _ in range(14):
+        closes.append(closes[-1] * 0.97)   # 하락 → RSI 저하
+    for _ in range(5):
+        closes.append(closes[-1] * 1.05)   # 반등 → RSI 30 위로
+    ctx = _ctx(price=closes[-1], closes=closes, highs=closes, lows=closes,
+               volumes=[1.0] * len(closes))
+    assert "buy_rsi_bounce" in _conditions(evaluate_buy(ctx, BUY_PARAMS))
+
+
+def test_empty_series_no_fire():
+    assert evaluate_buy(_ctx(), BUY_PARAMS) == []
diff --git a/services/trade-monitor/tests/test_conditions_sell.py b/services/trade-monitor/tests/test_conditions_sell.py
new file mode 100644
index 0000000..5bd5681
--- /dev/null
+++ b/services/trade-monitor/tests/test_conditions_sell.py
@@ -0,0 +1,69 @@
+"""evaluate_sell — 5개 매도 조건 경계."""
+from conditions import evaluate_sell
+
+EXIT = {"stop_pct": 0.08, "take_pct": 0.25, "trailing_pct": 0.10}
+
+
+def _ctx(**over):
+    base = dict(
+        ticker="000660", name="SK하이닉스", price=100.0, day_open=100.0,
+        today_volume=100.0, closes=[100.0] * 60, highs=[100.0] * 60,
+        lows=[100.0] * 60, volumes=[100.0] * 60,
+        avg_price=100.0, qty=10, holding_high=100.0, climax_vol_mult=3.0,
+    )
+    base.update(over)
+    return base
+
+
+def _c(firing):
+    return {f["condition"] for f in firing}
+
+
+def test_stop_loss_fires():
+    ctx = _ctx(price=90.0, avg_price=100.0)   # -10% <= -8%
+    assert "sell_stop_loss" in _c(evaluate_sell(ctx, EXIT))
+
+
+def test_stop_loss_skips_above_threshold():
+    ctx = _ctx(price=95.0, avg_price=100.0)   # -5% > -8%
+    assert "sell_stop_loss" not in _c(evaluate_sell(ctx, EXIT))
+
+
+def test_take_profit_fires():
+    ctx = _ctx(price=130.0, avg_price=100.0)  # +30% >= 25%
+    assert "sell_take_profit" in _c(evaluate_sell(ctx, EXIT))
+
+
+def test_trailing_stop_fires():
+    ctx = _ctx(price=89.0, holding_high=100.0)  # 89 <= 100*0.9=90
+    assert "sell_trailing_stop" in _c(evaluate_sell(ctx, EXIT))
+
+
+def test_ma_break_severity_high():
+    # price가 ma50/ma200 아래 → severity high (ma200 계산 위해 200봉 필요)
+    closes = [200.0] * 200
+    ctx = _ctx(price=100.0, closes=closes, avg_price=100.0, holding_high=100.0)
+    firing = evaluate_sell(ctx, EXIT)
+    mb = [f for f in firing if f["condition"] == "sell_ma_break"]
+    assert mb and mb[0]["detail"]["severity"] == "high"
+
+
+def test_climax_fires():
+    # 거래량 3배 이상 + 종가(현재가)<시가 반전
+    ctx = _ctx(price=98.0, day_open=100.0, today_volume=400.0,
+               volumes=[100.0] * 60)   # 400 >= 3*100, 98<100
+    assert "sell_climax" in _c(evaluate_sell(ctx, EXIT))
+
+
+def test_climax_skips_when_not_reversal():
+    ctx = _ctx(price=101.0, day_open=100.0, today_volume=400.0,
+               volumes=[100.0] * 60)   # 상승 마감 → 반전 아님
+    assert "sell_climax" not in _c(evaluate_sell(ctx, EXIT))
+
+
+def test_no_avg_no_pnl_conditions():
+    # avg_price None(보유정보 없음) → stop/take 미발화
+    ctx = _ctx(price=50.0, avg_price=None, holding_high=None,
+               closes=[100.0] * 60)
+    conds = _c(evaluate_sell(ctx, EXIT))
+    assert "sell_stop_loss" not in conds and "sell_take_profit" not in conds