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FAQ

How many stocks do you cover?

All available stocks will appear in the search bar if you search by ticker in "My Portfolio". All tickers trading on London Stock Exchange have ".LSE" extension. All tickers trading on Tokyo Stock Exchange have ".TSE" extension.

Does this Application provide real-time data?

Yes, DataMelon PRO provides real-time stock data including price, volume, technical indicators, financials (income statement, balance sheet, cash flow), earnings, key statistics, news, a day's intraday minute by minute data, and up to five years of historical daily market data. ALL historical data above 5 years will be provided as monthly data. The monthly volume is the sum of the entire month volume. The daily and monthly price data is adjusted to remove gaps caused by stock splits, dividends and distributions. That may cause our charts to look different from other services that do not perform the same adjustments. Therefore, some blue chip companies may have very low adjusted prices in the early trading days.

How do you use the stock evaluation function?

The stock evaluation function computes a percentile through evaluating a stock across 20 select key statistics such as returnOnAssets, profit margin, and ttmEPS. To began, look up and select a stock through the search bar. Using the slider, the weight of each key statistic can be changed. You can switch the key off to remove it from the evaluation. The resulting score is split into two sections. The first section compares the select stock with all stocks, while the second section compares the select stock with its sector. If the stock does not belong to any sector, the second section will be empty. You can make a screenshot of the evaluation result and share to other apps. Currently, the evaluation function is not available for tickers trading on Tokyo Stock Exchange (TSE).

Do I need to create a user account to use this software application ("Application")?

Yes, you do need to create a free user account to retrieve current key statistics data from our server for evaluating stocks. New data is usually updated at or before 10 pm ET on all trading days. You can also use this free account to keep a copy of your historical quiz scores on our server. Your quiz scores will be synchronized on your mobile devices and won't be lost even if the app is deleted.

How do I add a new stock?

Go to PORTFOLIO⇒My Portfolio. Use the search bar to find the ticker, and select the ticker. You can add, delete, and replace up to 50 stocks in your portfolio. Your portfolio has been pre-installed with twelve stocks.

How do I delete a stock?

Go to PORTFOLIO⇒My Portfolio, and click the recycle bin icon on the right side of the stock ticker.

How do I update the stock data?

Stock data will be automatically updated when you use the App. Or go to PORTFOLIO⇒My Portfolio, and click the update data icon on the right side of the search bar to refresh all the stocks in your portfolio. You can also update a single stock by selecting it in your portfolio.

Why does it take a while to load a new stock into my portfolio?

The 5 years historical data for the selected stock will be downloaded to your device, so it may take a while to download and process the data. But depending on your device, the process will take longer or shorter.

Is the training data real data?

The training data is 100% real historical market data. The price data is adjusted to remove gaps caused by stock splits, dividends and distributions. That may cause our charts to look different from other services that do not perform the same adjustments.

How is simulation generated?

Each simulation is randomly generated by selecting a stock and time period from the stocks in your portfolio. You will receive a profit and loss summary after each simulation. You can set simulator criteria by using SETTINGS.

How is quiz generated?

Each question is randomly generated by selecting a stock and time period from the stocks in your portfolio. You will receive a score after you submit your answers. You can set quiz criteria by using SETTINGS.

Why is the quiz score between -1 and 1?

The score is the correlation coefficient between the real forward return series and the answered return series. A value of 1 suggests that the forecast aligns exactly with the real return series. A value of -1 suggests that the forecast is completely wrong and the exact opposite of the real return series. A value of 0 suggests that the forecast does not contain any real predictability. In conclusion, the closer the score is to one the better.

How do I synchronize my quiz scores?

After you create your user account, go to Quiz⇒QuizScore and click the refresh button on the up-right corner. If you are already logged in, your score will be automatically sent to our server once you complete a quiz.

What technical indicators are available?

So far this Application provides:

Simple Moving Average (SMA)

SMA: n-period sum / n

Exponential Moving Average (EMA)

Initial SMA: n-period sum / n
Multiplier: 2 / (Time periods + 1)
EMA: {Close - EMA(previous day)} x multiplier + EMA(previous day).

Bollinger Bands (BB)

* Middle Band = 20-day simple moving average (SMA)
* Upper Band = 20-day SMA + (20-day standard deviation of price x 2)
* Lower Band = 20-day SMA - (20-day standard deviation of price x 2)

Accumulation Distribution Line (ADL)

Money Flow Multiplier = [(Close - Low) - (High - Close)] /(High - Low)
Money Flow Volume = Money Flow Multiplier x Volume for the Period
ADL = Previous ADL + Current Period's Money Flow Volume

Aroon Indicator

Aroon Up: (n - (periods since highest high in "n+1" periods)/n) x 100
Aroon Down: (n - (periods since lowest low in "n+1" periods) /n) x 100

Average Directional Index (ADX)

Calculate the True Range (TR), Plus Directional Movement (+DM) and Minus Directional Movement (-DM) for each period.
+DI = 100 times the smoothed moving average of (+DM) divided by average true range
−DI = 100 times the smoothed moving average of (−DM) divided by average true range
ADX = 100 times the smoothed moving average of the absolute value of (+DI − −DI) divided by (+DI + −DI)

Average True Range (ATR)

Current TR is the greatest of the following: current high less the current low, the absolute value of the current high less the previous close and the absolute value of the current low less the previous close.
Current ATR = [(Prior ATR x 13) + Current TR] / 14

Know Sure Thing (KST)

RCMA1 = 10-Period SMA of 10-Period Rate-of-Change
RCMA2 = 10-Period SMA of 15-Period Rate-of-Change
RCMA3 = 10-Period SMA of 20-Period Rate-of-Change
RCMA4 = 15-Period SMA of 30-Period Rate-of-Change
KST = (RCMA1 x 1) + (RCMA2 x 2) + (RCMA3 x 3) + (RCMA4 x 4)
Signal Line = 9-period SMA of KST

Moving Average Convergence Divergence (MACD)

MACD Line: (12-day EMA - 26-day EMA)
Signal Line: 9-day EMA of MACD Line
MACD Histogram: MACD Line - Signal Line

Money Flow Index (MFI)

Typical price = (high price + low price + closing price) / 3
Raw money flow = typical price x volume
Money flow ratio = (14-day Positive Money Flow) / (14-day Negative Money Flow)
MFI = 100 - 100 / (1 + money flow ratio)

Negative Volume Index (NVI)

Cumulative NVI starts at 1000
Add the Percentage Price Change to Cumulative NVI when Volume Decreases
Cumulative NVI is Unchanged when Volume Increases
Apply a 255-day EMA for Signals

On Balance Volume (OBV)

If the closing price is above the prior close price then:
Current OBV = Previous OBV + Current Volume
If the closing price is below the prior close price then:
Current OBV = Previous OBV - Current Volume
If the closing prices equals the prior close price then:
Current OBV = Previous OBV (no change)

Rate Of Change (ROC)

ROC = [(Close - Close n periods ago) / (Close n periods ago)] * 100

Relative Strength Index(RSI)

RSI = 100 - 100 / (1 + RS)
RS = Average Gain / Average Loss

Stochastic Oscillator

%K = (Current Close - Lowest Low)/(Highest High - Lowest Low) * 100
%D = 3-day SMA of %K

and Williams %R

%R = (Highest High – Closing Price) / (Highest High – Lowest Low) x -100

If you have any questions or find any problems, please do not hesitate to contact us by email at admin@practicetrades.com.