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ExOne specialized in additive manufacturing with metals, using a binder-jet process.   A good overview of the original high-risk thesis can be found here, but note that I warned readers that the short squeeze was looking unsustainable just 2 months later. XONE
        coverage chart This gave investors a chance to get out with 10% gain.  By the time coverage began here on CrowdWisers, notes were becoming increasingly bearish as the company pursued a strategy that had little chance of bearing fruit until at least 2016 or 2017.  Using the rank filters to the lower right should make the trend very evident.

Although I did manage to call the bottom on XONE, it was with great caution, and I instead turned to shorting some of the highs later on to good effect.  Even so, I kept my commitment to subscribers until they agreed in late 2017 that it was time to drop coverage in order to devote more attention to the many better ideas that I have identified.  I continue to be interested in the science that drives this industry, and readers may wish to give particular attention to the final three updates, the last of which merely documents that ExOne was eventually acquired by the very competitor that I cited as potentially dominant.

-3 Desktop Metal to be bought by Stratasys07:57 25-May-23
?3 Desktop Metal acquires ExOne03:45 14-Nov-21
?3 last XONE entry12:11 02-Sep-17
-4 ExOne 2Q17 results10:45 10-Aug-17
?3 ExOne, eMagin schedule 2Q17 and oil notes09:38 27-Jul-17
?3 ExOne 1Q17 results11:21 11-May-17
?2 ExOne schedules 1Q17 report16:59 27-Apr-17
-3 ExOne 4Q16 results09:31 17-Mar-17
?3 ExOne schedules 4Q16 report16:58 02-Mar-17
?2 ExOne consolidating PSC operations15:04 30-Jan-17
?3 ExOne 3Q16 results09:34 10-Nov-16
?3 ExOne schedules 3Q16 report07:54 27-Oct-16
+2 ExOne introduces fine-powder Innovent and SS316L08:37 06-Oct-16
?3 XONE rises as GE buys AM companies10:00 06-Sep-16
+2 Open Market XONE buy from incoming CEO14:05 25-Aug-16
+2 ExOne management changes08:31 19-Aug-16
?2 ExOne 2Q16 results09:53 10-Aug-16
?2 ExOne schedules 2Q16 report07:34 27-Jul-16
+1 ExOne gets Missile Defense contract16:36 21-Jul-16
?3 ExOne 1Q16 results16:58 10-May-16
?3 ExOne schedules 1Q16 report17:18 27-Apr-16
+1 ExOne machine at new GE center?11:45 07-Apr-16
-4 ExOne 4Q15 presentation08:19 23-Mar-16
?5 ExOne 4Q15 results17:42 22-Mar-16
-1 ExOne delays 4Q15 report17:21 14-Mar-16
?3 ExOne sets date for 4Q15 report16:40 02-Mar-16
?1 ExOne printer makes largest titanium part21:22 20-Jan-16
?2 Rockwell buys $13M XONE shares17:17 11-Jan-16
-6 ExOne files to dilute shareholders08:19 11-Jan-16
-2 ExOne reports shipments for Q408:24 06-Jan-16
-5 ExOne conference call notes09:47 10-Nov-15
-7 ExOne 3Q15 results16:59 09-Nov-15
?7 ExOne schedules 3Q15 report17:11 29-Oct-15
?3 ExOne opens $15M credit facility09:18 26-Oct-15
-2 XONE market dynamics11:11 19-Oct-15
?3 NYS to build $125M AM plant16:50 05-Oct-15
+4 ExOne adds CHP binders11:24 09-Sep-15
+4 Second open market insider buy for XONE16:54 27-Aug-15
+6 Open market insider buy in XONE11:33 26-Aug-15
+3 ExOne to open new PSC with Swerea16:22 18-Aug-15
-7 ExOne 2Q15 report16:30 10-Aug-15
+2 ExOne Opens DREAM Center11:08 30-Jul-15
?7 ExOne schedules 2Q15 report07:55 28-Jul-15
+4 ExOne Qualifies Water Wash-out Tooling Process10:11 01-Jul-15
-5 ExOne 1Q15 Conference Call Notes09:43 12-Jun-15
-5 ExOne misses big again17:00 11-Jun-15
-5 ExOne postpones 1Q15 report to early June18:34 11-May-15
-4 ExOne files S-3 for up to $150M16:41 10-Apr-15
?6 ExOne Slowly Approaching an Inflection Point11:04 17-Mar-15
-5 ExOne misses again17:39 16-Mar-15
+4 ExOne Announces Exerial09:47 05-Mar-15
+4 ExOne announces 6 new materials16:47 18-Feb-15
+2 ExOne certifies two more PSCs09:20 10-Feb-15