Dollar cost averaging (DCA) in BLD means investing a fixed amount at regular intervals, regardless of share price. This strategy reduces timing risk and builds wealth steadily through market ups and downs.
How This Calculator Works
Our DCA calculator simulates real market conditions using historical price data. It accounts for dividend reinvestment (DRIP), where each dividend payment automatically purchases additional shares. You can adjust the investment amount, frequency, time period, and compare against benchmarks like the S&P 500 and Nasdaq-100.
Same amount invested each month — only the day of purchase changes. How much does intra-month timing actually matter?
Best Timing DCA
StrategyBuy on monthly low
Total Return+159.9%
Final Value$124.8K
Perfectly timed — impossible in practice
Your DCA
StrategyBuy on 1st of month
Total Return+145.2%
Final Value$117.7K
Consistent — no timing needed
Worst Timing DCA
StrategyBuy on monthly high
Total Return+129.3%
Final Value$110.1K
Worst possible — still beats not investing
Best vs Worst gap30.6 pp
Your timing vs best-14.7%
Your timing vs worst+15.9%
If You Keep Investing…
Based on this stock's historical CAGR of 15.2%/yr — put in vs. walk away with.
Your Plan
At $500/mo, this could grow into:
3 Years$22K~1.2x your moneyfrom $18K invested
5 Years$43K~1.4x your moneyfrom $30K invested
10 Years$131K~2.2x your moneyfrom $60K invested
20 Years$672K~5.6x your moneyfrom $120K invested
Compare Other Monthly Amounts
Same CAGR assumption. Use this to pressure-test different monthly commitments.
Monthly
3 Years~1.2x your money
5 Years~1.4x your money
10 Years~2.2x your money
20 Years~5.6x your money
$100/mo
$4K+$858 est. gain
$9K+$3K est. gain
$26K+$14K est. gain
$134K+$110K est. gain
$250/mo
$11K+$2K est. gain
$22K+$7K est. gain
$66K+$36K est. gain
$336K+$276K est. gain
$500/mo
$22K+$4K est. gain
$43K+$13K est. gain
$131K+$71K est. gain
$672K+$552K est. gain
$1,000/mo
$45K+$9K est. gain
$87K+$27K est. gain
$263K+$143K est. gain
$1.3M+$1.1M est. gain
* Projection assumes historical CAGR of 15.2% continues. Actual returns will vary.
Your DCA Results by Date
77 purchases
Date
Price
Invested
Portfolio Value
% Gain
Gain ($)
Jan 2, 2020
$103.11
$10,000
$10,000
+0.00%
$0
Feb 3, 2020
$113.52
$10,500
$11,510
+9.62%
$1,010
Mar 2, 2020
$105.74
$11,000
$11,221
+2.01%
$221
Apr 2, 2020
$65.13
$11,500
$7,411
-35.55%
$-4,089
May 4, 2020
$89.01
$12,000
$10,629
-11.43%
$-1,371
Jun 2, 2020
$120.68
$12,500
$14,911
+19.28%
$2,411
Jul 2, 2020
$111.74
$13,000
$14,306
+10.05%
$1,306
Aug 3, 2020
$136.00
$13,500
$17,912
+32.68%
$4,412
Sep 2, 2020
$162.31
$14,000
$21,877
+56.27%
$7,877
Oct 2, 2020
$179.75
$14,500
$24,728
+70.54%
$10,228
Nov 2, 2020
$160.14
$15,000
$22,530
+50.20%
$7,530
Dec 2, 2020
$166.28
$15,500
$23,894
+54.15%
$8,394
Jan 4, 2021
$181.52
$16,000
$26,584
+66.15%
$10,584
Feb 2, 2021
$209.68
$16,500
$31,208
+89.14%
$14,708
Mar 2, 2021
$196.43
$17,000
$29,736
+74.92%
$12,736
Apr 5, 2021
$215.18
$17,500
$33,074
+89.00%
$15,574
May 3, 2021
$229.10
$18,000
$35,714
+98.41%
$17,714
Jun 2, 2021
$194.08
$18,500
$30,755
+66.24%
$12,255
Jul 2, 2021
$195.95
$19,000
$31,551
+66.06%
$12,551
Aug 2, 2021
$201.62
$19,500
$32,964
+69.05%
$13,464
Sep 2, 2021
$220.00
$20,000
$36,469
+82.34%
$16,469
Oct 4, 2021
$208.42
$20,500
$35,049
+70.97%
$14,549
Nov 2, 2021
$258.07
$21,000
$43,899
+109.04%
$22,899
Dec 2, 2021
$276.47
$21,500
$47,529
+121.06%
$26,029
Jan 3, 2022
$268.98
$22,000
$46,741
+112.46%
$24,741
Page 1 of 4
Frequently Asked Questions
Common questions about DCA investing in BLD
Investing $500 per month in TopBuild Corp. (BLD) over the past 6 years would be worth approximately $118K today. That's +145.2% total return on $48K invested, with a +15.2% compound annual growth rate (CAGR).