diff --git a/alerts/bollinger_band.js b/alerts/bollinger_band.js
new file mode 100644
index 0000000..4942697
--- /dev/null
+++ b/alerts/bollinger_band.js
@@ -0,0 +1,27 @@
+const bb = require('../indicators/bollinger_band.js')
+const ticker = require('../indicators/ticker.js')
+const calculateBollingerBandValue = async (period, stdDev, exchange, symbol, interval, isFuture) => {
+    try {
+        return await bb(parseInt(period), parseInt(stdDev), "close", exchange, symbol, interval, isFuture)
+    } catch (err) {
+        throw (err)
+    }
+}
+const bbCheck = async (period, stdDev, exchange, symbol, interval, isFuture = false) => {
+    let bbVals = await calculateBollingerBandValue(period, stdDev, exchange, symbol, interval, isFuture),
+    	lastBBVal = bbVals[bbVals.length - 1]
+	tick = await ticker(exchange, symbol, isFuture),
+    	price = tick.close,
+	down = price < lastBBVal.lower,
+	up = price > lastBBVal.upper
+    return {
+        breakOut:  down || up,
+        band: down ? "lower" : (up ? "upper" : "none"),
+        direction: down ? "down" : (up ? "up" : "none"),
+	price: price,
+    }
+}
+
+module.exports = {
+    bbCheck: bbCheck,
+}
diff --git a/alerts/ema.js b/alerts/ema.js
index 3c6e138..8578f97 100644
--- a/alerts/ema.js
+++ b/alerts/ema.js
@@ -5,7 +5,7 @@ const {
     crossunder
 } = require('../utils/cross.js')
 
-const priceCrossEMA = async (period, symbol, interval, exchange, isFuture = false) => {
+const priceCrossEMA = async (period, exchange, symbol, interval, isFuture = false) => {
     let maVal = await ema(parseInt(period), "close", exchange, symbol, interval, isFuture),
         ohlcv = await getOHLCV(exchange, symbol, interval, isFuture),
         price = [ohlcv[1][3], ohlcv[0][3]],
@@ -19,4 +19,4 @@ const priceCrossEMA = async (period, symbol, interval, exchange, isFuture = fals
 
 module.exports = {
     priceCrossEMA: priceCrossEMA,
-}
+}
\ No newline at end of file
diff --git a/alerts/index.js b/alerts/index.js
index dcc182c..7ccb05e 100644
--- a/alerts/index.js
+++ b/alerts/index.js
@@ -1,5 +1,6 @@
 module.exports = {
+    ...require('./bollinger_band.js'),
     ...require('./ema.js'),
     ...require('./sma.js'),
-    ...require('./rsi.js')
-}
+    ...require('./rsi.js'),
+}
\ No newline at end of file
diff --git a/alerts/rsi.js b/alerts/rsi.js
index 6b4829f..5f77cf0 100644
--- a/alerts/rsi.js
+++ b/alerts/rsi.js
@@ -1,13 +1,13 @@
 const rsi = require('../indicators/rsi.js')
-const calculateRSIValue = async (period, symbol, interval, exchange, isFuture) => {
+const calculateRSIValue = async (period, exchange, symbol, interval, isFuture) => {
     try {
         return await rsi(parseInt(period), "close", exchange, symbol, interval, isFuture)
     } catch (err) {
         throw (err)
     }
 }
-const rsiCheck = async (period, overBoughtThreshold, overSoldThreshold, symbol, interval, exchange, isFuture = false) => {
-    let rsiVals = await calculateRSIValue(period, symbol, interval, exchange, isFuture),
+const rsiCheck = async (period, overBoughtThreshold, overSoldThreshold, exchange, symbol, interval, isFuture = false) => {
+    let rsiVals = await calculateRSIValue(period, exchange, symbol, interval, isFuture),
         rsiVal = rsiVals[rsiVals.length - 1]
     return {
         overBought: rsiVal >= overBoughtThreshold,
diff --git a/alerts/sma.js b/alerts/sma.js
index 7c63a83..2068e84 100644
--- a/alerts/sma.js
+++ b/alerts/sma.js
@@ -4,7 +4,7 @@ const {
     crossover,
     crossunder
 } = require('../utils/cross.js')
-const calculateMA = async (MA_FAST, MA_SLOW, symbol, interval, exchange, isFuture) => {
+const calculateMA = async (MA_FAST, MA_SLOW, exchange, symbol, interval, isFuture) => {
     try {
         let MA_FAST_VAL = await sma(parseInt(MA_FAST), "close", exchange, symbol, interval, isFuture)
         let MA_SLOW_VAL = await sma(parseInt(MA_SLOW), "close", exchange, symbol, interval, isFuture)
@@ -19,9 +19,9 @@ const calculateMA = async (MA_FAST, MA_SLOW, symbol, interval, exchange, isFutur
 }
 
 let maFastVal, maSlowVal
-const goldenCross = async (MA_FAST, MA_SLOW, symbol, interval, exchange, isFuture = false) => {
+const goldenCross = async (MA_FAST, MA_SLOW, exchange, symbol, interval, isFuture = false) => {
     if (maFastVal == undefined || maSlowVal == undefined) {
-        let maVal = await calculateMA(MA_FAST, MA_SLOW, symbol, interval, exchange, isFuture)
+        let maVal = await calculateMA(MA_FAST, MA_SLOW, exchange, symbol, interval, isFuture)
         maFastVal = maVal.fast
         maSlowVal = maVal.slow
     }
@@ -29,9 +29,9 @@ const goldenCross = async (MA_FAST, MA_SLOW, symbol, interval, exchange, isFutur
     return crossover(maFastVal, maSlowVal)
 }
 
-const deathCross = async (MA_FAST, MA_SLOW, symbol, interval, exchange, isFuture = false) => {
+const deathCross = async (MA_FAST, MA_SLOW, exchange, symbol, interval, isFuture = false) => {
     if (maFastVal == undefined || maSlowVal == undefined) {
-        let maVal = await calculateMA(MA_FAST, MA_SLOW, symbol, interval, exchange, isFuture)
+        let maVal = await calculateMA(MA_FAST, MA_SLOW, exchange, symbol, interval, isFuture)
         maFastVal = maVal.fast
         maSlowVal = maVal.slow
     }
@@ -39,14 +39,14 @@ const deathCross = async (MA_FAST, MA_SLOW, symbol, interval, exchange, isFuture
     return crossunder(maFastVal, maSlowVal)
 }
 
-const maCross = async (MA_FAST, MA_SLOW, symbol, interval, exchange, isFuture = false) => {
+const maCross = async (MA_FAST, MA_SLOW, exchange, symbol, interval, isFuture = false) => {
     return {
-        goldenCross: await goldenCross(MA_FAST, MA_SLOW, symbol, interval, exchange, isFuture),
-        deathCross: await deathCross(MA_FAST, MA_SLOW, symbol, interval, exchange, isFuture),
+        goldenCross: await goldenCross(MA_FAST, MA_SLOW, exchange, symbol, interval, isFuture),
+        deathCross: await deathCross(MA_FAST, MA_SLOW, exchange, symbol, interval, isFuture),
     }
 }
 
-const priceCrossSMA = async (period, symbol, interval, exchange, isFuture = false) => {
+const priceCrossSMA = async (period, exchange, symbol, interval, isFuture = false) => {
     let maVal = await sma(parseInt(period), "close", exchange, symbol, interval, isFuture),
         ohlcv = await getOHLCV(exchange, symbol, interval, isFuture),
         price = [ohlcv[1][3], ohlcv[0][3]],
@@ -63,4 +63,4 @@ module.exports = {
     goldenCross: goldenCross,
     deathCross: deathCross,
     priceCrossSMA: priceCrossSMA,
-}
+}
\ No newline at end of file
diff --git a/index.js b/index.js
index 7ed913c..037e81a 100644
--- a/index.js
+++ b/index.js
@@ -24,6 +24,8 @@ module.exports = {
     ticker: ticker,
     wma: wma,
 }
+
+// examples for testing
 const main = async () => {
     try {
         console.log("RSI 14 on Binance BTC/USDT 15m")
@@ -49,19 +51,23 @@ const main = async () => {
         console.log(await ichimokuCloud(9, 26, 52, 26, 'binance', 'BTC/USDT', '1h', false))
 
         console.log("Test golden cross")
-        console.log(await alerts.goldenCross(50, 200, 'BTC/USDT', '1h', 'binance', false))
+        console.log(await alerts.goldenCross(50, 200, 'binance', 'BTC/USDT', '1h', false))
 
 	console.log("Test MA cross")
-        console.log(await alerts.maCross(50, 200, 'BTC/USDT', '1h', 'binance', false))
+        console.log(await alerts.maCross(50, 200, 'binance', 'BTC/USDT', '1h', false))
 
 	console.log("Test RSIcheck")
-        console.log(await alerts.rsiCheck(14, 75, 25, 'BTC/USDT', '1h', 'binance', false))
+        console.log(await alerts.rsiCheck(14, 75, 25, 'binance', 'BTC/USDT', '1h', false))
 
 	console.log("Test SMA cross")
-	console.log(await alerts.priceCrossSMA(14, 'BTC/USDT', '1h', 'binance', false))
+	console.log(await alerts.priceCrossSMA(14, 'binance', 'BTC/USDT', '1h', false))
 
         console.log("Test EMA cross")
-        console.log(await alerts.priceCrossEMA(14, 'BTC/USDT', '1h', 'binance', false))
+        console.log(await alerts.priceCrossEMA(14, 'binance', 'BTC/USDT', '1h', false))
+
+        console.log("Test break out BB")
+        console.log(await alerts.bbCheck(50, 2, 'binance', 'BTC/USDT', '1h', false))
+
     } catch (err) {
         console.log(err)
     }