Stock Manager

Google Apps Script for managing stocks at Google Sheets.

System design

Summary

The Stock Manager application reads data from the transaction sheet, which contains stock transaction details, and performs the following operations:

1. Reads Transaction Data: Reads through the transaction sheet, extracting the following elements:

   Ticker	Side	Quantity	Total	Price
   SLCE3	BUY	200	$3,690.00	$18.45
   SLCE3	BUY	150	$2,767.50	$18.45
   VALE3	SELL	4000	$265,408.50	$66.35
   PETR4	BUY	500	$7,325.00	$14.65
   ITUB4	BUY	300	$4,275.00	$14.25
   B3SA3	SELL	800	$36,640.00	$45.80

2. Position Sheet: Generates a sheet called generatedPosition containing aggregated stock position data. Each row in the generatedPosition sheet represents a unique stock position and contains the following elements:

   Ticker	AvgPrice	Qty
   VALE3	66.352125	4000
   SLCE3	18.45	350
   PETR4	25.70	800
   ITUB4	30.20	600
   BBDC4	28.90	700
   B3SA3	45.80	450

3. Trade Sheet: Generates a sheet called generatedTrade containing trade information. Each row in the generatedTrade sheet represents a trade and contains the following elements:

   Ticker	Quantity	AvgBuyPrice	SellPrice	Profit	ProfitPercentage	Type
   MGLU3	1	R$ 62.02	R$ 60.73	-R$ 1.29	-2.09%	DAY
   MGLU3	31	R$ 59.62	R$ 60.73	R$ 34.41	1.86%	SWING
   BTOW3	7	R$ 85.00	R$ 89.14	R$ 29.00	4.87%	SWING
   HGTX3	50	R$ 15.72	R$ 16.02	R$ 14.90	1.90%	SWING
   PSSA3	20	R$ 51.68	R$ 52.45	R$ 15.36	1.49%	SWING
   BKBR3	40	R$ 13.60	R$ 14.32	R$ 28.90	5.31%	SWING

4. Monthly Trade Report: Generates a report called monthlyTradeReport containing monthly trade information. Each row in the monthlyTradeReport sheet represents a month and contains the following elements:

   Year	Month	Total Sold	Day Trade	Swing Trade
   2023	01	R$ 10,741.36	R$ 60.73	R$ 10,680.63
   2023	02	R$ 7,269.62	R$ 119.69	R$ 7,149.93
   2023	03	R$ 8,899.06	R$ 0.00	R$ 8,899.06
   2023	04	R$ 9,170.60	R$ 0.00	R$ 9,170.60
   2023	05	R$ 11,187.25	R$ 0.00	R$ 11,187.25
   2023	06	R$ 438.20	R$ 0.00	R$ 438.20