Dollar cost averaging (DCA) in RLYB 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+41.8%
Final Value$55.3K
Perfectly timed — impossible in practice
Your DCA
StrategyBuy on 1st of month
Total Return+1.9%
Final Value$39.2K
Consistent — no timing needed
Worst Timing DCA
StrategyBuy on monthly high
Total Return-14.3%
Final Value$33.4K
Worst possible — still beats not investing
Best vs Worst gap56.1 pp
Your timing vs best-39.9%
Your timing vs worst+16.3%
If You Keep Investing…
Based on this stock's historical CAGR of 0.4%/yr — put in vs. walk away with.
Your Plan
At $500/mo, this could grow into:
3 Years$18K~1.0x your moneyfrom $18K invested
5 Years$30K~1.0x your moneyfrom $30K invested
10 Years$61K~1.0x your moneyfrom $60K invested
20 Years$125K~1.0x your moneyfrom $120K invested
Compare Other Monthly Amounts
Same CAGR assumption. Use this to pressure-test different monthly commitments.
Monthly
3 Years~1.0x your money
5 Years~1.0x your money
10 Years~1.0x your money
20 Years~1.0x your money
$100/mo
$4K+$21 est. gain
$6K+$60 est. gain
$12K+$244 est. gain
$25K+$993 est. gain
$250/mo
$9K+$53 est. gain
$15K+$150 est. gain
$31K+$610 est. gain
$62K+$2K est. gain
$500/mo
$18K+$107 est. gain
$30K+$300 est. gain
$61K+$1K est. gain
$125K+$5K est. gain
$1,000/mo
$36K+$213 est. gain
$61K+$600 est. gain
$122K+$2K est. gain
$250K+$10K est. gain
* Projection assumes historical CAGR of 0.4% continues. Actual returns will vary.
Your DCA Results by Date
58 purchases
Date
Price
Invested
Portfolio Value
% Gain
Gain ($)
Jul 29, 2021
$112.80
$10,000
$10,000
+0.00%
$0
Aug 30, 2021
$102.96
$10,500
$9,628
-8.31%
$-872
Sep 29, 2021
$128.00
$11,000
$12,469
+13.36%
$1,469
Oct 29, 2021
$142.80
$11,500
$14,411
+25.31%
$2,911
Nov 29, 2021
$105.76
$12,000
$11,173
-6.89%
$-827
Dec 29, 2021
$80.00
$12,500
$8,952
-28.39%
$-3,548
Jan 31, 2022
$97.28
$13,000
$11,385
-12.42%
$-1,615
Mar 1, 2022
$84.32
$13,500
$10,368
-23.20%
$-3,132
Apr 1, 2022
$61.44
$14,000
$8,055
-42.47%
$-5,945
May 2, 2022
$74.96
$14,500
$10,327
-28.78%
$-4,173
Jun 1, 2022
$109.20
$15,000
$15,545
+3.63%
$545
Jul 1, 2022
$60.32
$15,500
$9,087
-41.38%
$-6,413
Aug 1, 2022
$72.88
$16,000
$11,479
-28.26%
$-4,521
Sep 1, 2022
$87.36
$16,500
$14,259
-13.58%
$-2,241
Oct 3, 2022
$118.88
$17,000
$19,904
+17.08%
$2,904
Nov 1, 2022
$72.16
$17,500
$12,582
-28.10%
$-4,918
Dec 1, 2022
$48.32
$18,000
$8,925
-50.42%
$-9,075
Jan 3, 2023
$49.52
$18,500
$9,647
-47.86%
$-8,853
Feb 1, 2023
$54.48
$19,000
$11,113
-41.51%
$-7,887
Mar 1, 2023
$62.64
$19,500
$13,277
-31.91%
$-6,223
Apr 3, 2023
$44.80
$20,000
$9,996
-50.02%
$-10,004
May 1, 2023
$43.04
$20,500
$10,103
-50.72%
$-10,397
Jun 1, 2023
$60.72
$21,000
$14,753
-29.75%
$-6,247
Jul 3, 2023
$47.20
$21,500
$11,968
-44.33%
$-9,532
Aug 1, 2023
$47.92
$22,000
$12,651
-42.50%
$-9,349
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Frequently Asked Questions
Common questions about DCA investing in RLYB
Investing $500 per month in Rallybio Corporation (RLYB) over the past 5 years would be worth approximately $39K today. That's +1.9% total return on $39K invested, with a +0.4% compound annual growth rate (CAGR).