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Post-market

STOCKS is currently open for post-market.
Post market session closes in 3 hours 30 minutes

16:30
00:00
09:30
16:00
23:59

Trading Hours (Monday - Friday):

Pre-market
04:00 - 09:30
Main market
09:30 - 16:00
Post-market
16:00 - 20:00
All times are displayed in the America/New_York timezone (EDT, UTC-04:00).

SYN

0.33000001 USD
0.0274
7.67%
Last update Apr 27, 3:59 PM EDT
Post-market
Day range
0.32570001
0.35499999
Previous close
0.35740000
Open
0.35290000
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Synthetic Biologics Inc
0.33
0.03
7.67%

Historical data

Prices

Date Open High Low Close % Change Volume
Apr 29, 2026 0.35290000 0.35499999 0.32570001 0.33000001 -6.49% 2856855
Apr 28, 2026 0.35139999 0.35740000 0.34095001 0.35740000 1.71% 3219349
Apr 27, 2026 0.36480001 0.37279999 0.33410001 0.35370001 -3.04% 6178289
Apr 24, 2026 0.38350001 0.40000001 0.36219999 0.38100001 -0.65% 7041707
Apr 23, 2026 0.35830000 0.39500001 0.34520000 0.38100001 6.34% 11638675
Apr 22, 2026 0.32010001 0.38690001 0.30680001 0.37310001 16.56% 22371216
Apr 21, 2026 0.34889999 0.36399999 0.30090001 0.33870000 -2.92% 58294440
Apr 20, 2026 0.43979999 0.49200001 0.40099999 0.41000000 -6.78% 648577856
Apr 17, 2026 0.25639999 0.25880000 0.24750000 0.25720000 0.31% 111843456
Apr 16, 2026 0.25600001 0.26740000 0.24510001 0.25229999 -1.45% 2368478
Apr 15, 2026 0.24500000 0.25929999 0.24500000 0.25510001 4.12% 1575978
Apr 14, 2026 0.26840001 0.26840001 0.24100000 0.24100000 -10.21% 2062852
Apr 13, 2026 0.22740000 0.26230001 0.22130001 0.25310001 11.30% 2313631
Apr 10, 2026 0.23810001 0.25119999 0.23000000 0.23069900 -3.11% 1971535
Apr 09, 2026 0.27860001 0.28000000 0.23919700 0.25720000 -7.68% 5422599
Apr 08, 2026 0.25900000 0.31000000 0.25490001 0.29699999 14.67% 11391344
Apr 07, 2026 0.23999999 0.26300001 0.23999999 0.24950001 3.96% 4366327
Apr 06, 2026 0.23300000 0.26400000 0.22660001 0.24850000 6.65% 8584784
Apr 02, 2026 0.22239999 0.23000000 0.21531001 0.22990000 3.37% 3202174
Apr 01, 2026 0.19470000 0.24330001 0.19280000 0.22660001 16.38% 12531756
Mar 31, 2026 0.18539999 0.19939999 0.18441001 0.19580001 5.61% 2090414
Mar 30, 2026 0.19930001 0.20160000 0.18000001 0.18520001 -7.07% 3091371
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Post-market

Exchange is currently open for post-market.
Post market session closes in 3 hours 30 minutes

16:30
00:00
09:30
16:00
23:59

Trading Hours (Monday - Friday):

Pre-market
04:00 - 09:30
Main market
09:30 - 16:00
Post-market
16:00 - 20:00
All times are displayed in the America/New_York timezone (EDT, UTC-04:00).