Dollar cost averaging (DCA) in SEPN 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+55.3%
Final Value$30.3K
Perfectly timed — impossible in practice
Your DCA
StrategyBuy on 1st of month
Total Return+42.5%
Final Value$27.1K
Consistent — no timing needed
Worst Timing DCA
StrategyBuy on monthly high
Total Return+28.6%
Final Value$25.1K
Worst possible — still beats not investing
Best vs Worst gap26.8 pp
Your timing vs best-12.8%
Your timing vs worst+13.9%
If You Keep Investing…
Based on this stock's historical CAGR of 26.0%/yr — put in vs. walk away with.
Your Plan
At $500/mo, this could grow into:
3 Years$26K~1.4x your moneyfrom $18K invested
5 Years$56K~1.9x your moneyfrom $30K invested
10 Years$234K~3.9x your moneyfrom $60K invested
20 Years$2.6M~21.7x your moneyfrom $120K invested
Compare Other Monthly Amounts
Same CAGR assumption. Use this to pressure-test different monthly commitments.
Monthly
3 Years~1.4x your money
5 Years~1.9x your money
10 Years~3.9x your money
20 Years~21.7x your money
$100/mo
$5K+$2K est. gain
$11K+$5K est. gain
$47K+$35K est. gain
$521K+$497K est. gain
$250/mo
$13K+$4K est. gain
$28K+$13K est. gain
$117K+$87K est. gain
$1.3M+$1.2M est. gain
$500/mo
$26K+$8K est. gain
$56K+$26K est. gain
$234K+$174K est. gain
$2.6M+$2.5M est. gain
$1,000/mo
$51K+$15K est. gain
$112K+$52K est. gain
$468K+$348K est. gain
$5.2M+$5.0M est. gain
* Projection assumes historical CAGR of 26.0% continues. Actual returns will vary.
Your DCA Results by Date
19 purchases
Date
Price
Invested
Portfolio Value
% Gain
Gain ($)
Oct 25, 2024
$21.40
$10,000
$10,000
+0.00%
$0
Nov 25, 2024
$23.25
$10,500
$11,364
+8.23%
$864
Dec 26, 2024
$25.76
$11,000
$13,091
+19.01%
$2,091
Jan 27, 2025
$16.16
$11,500
$8,713
-24.24%
$-2,787
Feb 25, 2025
$5.52
$12,000
$3,476
-71.03%
$-8,524
Mar 25, 2025
$6.10
$12,500
$4,341
-65.27%
$-8,159
Apr 25, 2025
$6.46
$13,000
$5,098
-60.79%
$-7,902
May 27, 2025
$9.65
$13,500
$8,115
-39.89%
$-5,385
Jun 25, 2025
$10.73
$14,000
$9,523
-31.98%
$-4,477
Jul 25, 2025
$13.88
$14,500
$12,819
-11.60%
$-1,681
Aug 25, 2025
$11.96
$15,000
$11,545
-23.03%
$-3,455
Sep 25, 2025
$16.75
$15,500
$16,669
+7.54%
$1,169
Oct 27, 2025
$22.62
$16,000
$23,011
+43.82%
$7,011
Nov 25, 2025
$27.97
$16,500
$28,954
+75.48%
$12,454
Dec 26, 2025
$28.62
$17,000
$30,126
+77.21%
$13,126
Jan 26, 2026
$25.97
$17,500
$27,837
+59.07%
$10,337
Feb 25, 2026
$29.99
$18,000
$32,646
+81.37%
$14,646
Mar 25, 2026
$24.21
$18,500
$26,854
+45.16%
$8,354
Apr 27, 2026
$25.09
$19,000
$28,330
+49.11%
$9,330
Frequently Asked Questions
Common questions about DCA investing in SEPN
Investing $500 per month in Septerna, Inc. (SEPN) over the past 2 years would be worth approximately $27K today. That's +42.5% total return on $19K invested, with a +26.0% compound annual growth rate (CAGR).