SMA · Simple moving average
The mean of closes across a chosen number of bars. Price relative to its 20-bar mean describes trend; ranges can produce repeated crosses.
Read the evidence
Learn the calculations and their limits. Practice in the workspace, then check your understanding.
Indicators and risk
EMA · Exponential moving average
Weights recent prices more heavily. A faster response does not guarantee predictive power; period and initialization affect the value.
ATR · Range
Smooths true range using highs, lows and the previous close. It measures range, not direction; its scale changes with the bar interval.
RSI · Relative strength
A 0–100 measure comparing recent gains and losses. Values above 70 or below 30 alone do not establish an imminent reversal.
Ichimoku cloud
Combines conversion and base lines with a shifted cloud. Finji compares the current bar with cloud values calculated in the past.
Parabolic SAR
Updates a trailing reference from trend direction and extreme prices. Sideways movement can create frequent reversals and trading costs.
OBV · On-balance volume
Adds volume on rising closes and subtracts it on falling closes. Its starting level is arbitrary; compare the trajectory with price.
MACD · Momentum
Compares the difference between two exponential averages with a signal line. Crosses use past prices and may follow a change in trend.
Stochastic RSI
Locates RSI within its recent range. Finji shows an unsmoothed 14-period value and reports no value when the RSI range is zero.
Fibonacci retracement
Finji applies ratios to the high–low range of up to 60 recent bars. These reference levels depend on the selected swing and do not guarantee support.
Bollinger bands
Shows a range around an average using standard deviation. Crossing a band alone does not confirm a trade or a return to the mean.
Pivot points
Calculates pivot, support and resistance from the previous bar. On an intraday chart, Finji uses the previous selected bar, not the previous day.
Stops, sizing and costs
Align account and instrument currencies, then consider stop distance and fees. Gaps or limited liquidity can make realized losses exceed estimated risk.
Validation and overfitting
Separate rule development from validation. Finji executes prior-bar signals at the next open after costs. Universe selection, price adjustments and sample size limit the simulation.
Korean and US market data
Korean shares use KRW and Seoul time; US shares use USD and New York time. Check daylight saving, closures, delays, price adjustments and the selected interval.
Pattern reference
Double bottom / top
Compare two troughs or peaks and the intervening level. Check whether a breakout fails.
Head and shoulders
Compare three peaks and a neckline. The shape alone does not establish that a price target will be reached.
Triangle
Look for a narrowing range of highs and lows. Do not assume the eventual breakout direction.
Flag / pennant
Examine consolidation after a strong move and volume participation. Include both continuation and failure scenarios.
Trend channel
Use multiple highs and lows to inspect a range and breaks. Avoid discarding bars merely to fit a line.
Wedge
Inspect narrowing boundaries sloping in the same direction. Treat the pattern as conditional rather than a certain reversal.
Doji / engulfing
Read bodies and wicks in the surrounding trend. One or two candles cannot establish a future direction.
Breakout and retest
Check whether price holds beyond a prior level. Record gaps, volume and the condition that invalidates the idea.
Check your understanding
Further reading: Fidelity Technical Indicator Guide · FINRA Stop Orders
Practice with a chart →