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GameStop, Reddit, and the Rise of Risky Trades

GameStop, Reddit, and the Rise of Risky Trades

As many as one in four Americans have invested in speculative "meme" stocks in 2021, many using new mobile apps like Robinhood. How risky is it for small investors entering a volatile market?
Clip Length 08:35 Premiere: 4.27.21

Program Details

NOVA

About NOVA

NOVA brings you stories from the frontlines of science and engineering, answering the big questions of today and tomorrow, from how our ancestors lived, to whether parallel universes exist, to how technology will transform our lives. Visit the official website to watch full-length documentaries, or explore our world through short-form video, on our digital publication NOVA Next.

TV Schedules

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Upcoming

The Cannabis Question - S48 E11

As state-legalized cannabis spreads, Nova explores the potential benefits and risks of its use.

  • Wednesday September 29, 2021 9:00 pm ET on KET
  • Wednesday September 29, 2021 8:00 pm CT on KET
  • Friday October 1, 2021 2:00 am ET on KET
  • Friday October 1, 2021 1:00 am CT on KET
  • Sunday October 3, 2021 7:00 pm ET on KET2
  • Sunday October 3, 2021 6:00 pm CT on KET2
  • Tuesday October 5, 2021 3:00 am ET on KET2
  • Tuesday October 5, 2021 2:00 am CT on KET2

Particles Unknown - S48 E12

An international team studies the neutrino, the most common yet least understood particle in the universe.

  • Wednesday October 6, 2021 9:00 pm ET on KET
  • Wednesday October 6, 2021 8:00 pm CT on KET
  • Thursday October 7, 2021 1:00 pm ET on KET
  • Thursday October 7, 2021 12:00 pm CT on KET
  • Friday October 8, 2021 2:00 am ET on KET
  • Friday October 8, 2021 1:00 am CT on KET
  • Sunday October 10, 2021 7:00 pm ET on KET2
  • Sunday October 10, 2021 6:00 pm CT on KET2
  • Tuesday October 12, 2021 3:00 am ET on KET2
  • Tuesday October 12, 2021 2:00 am CT on KET2

Arctic Drift - S48 E13

Join scientists on the biggest Arctic research expedition of all time. Facing hungry polar bears, perilous sea ice cracks and brutal cold, the team strives to understand the forces that are changing the region and the world.

  • Wednesday October 13, 2021 9:00 pm ET on KET
  • Wednesday October 13, 2021 8:00 pm CT on KET
  • Thursday October 14, 2021 1:00 pm ET on KET
  • Thursday October 14, 2021 12:00 pm CT on KET
  • Friday October 15, 2021 2:00 am ET on KET
  • Friday October 15, 2021 1:00 am CT on KET
  • Sunday October 17, 2021 7:00 pm ET on KET2
  • Sunday October 17, 2021 6:00 pm CT on KET2
  • Tuesday October 19, 2021 3:00 am ET on KET2
  • Tuesday October 19, 2021 2:00 am CT on KET2

Edible Insects - S48 E14

From crunchy cricket chips to nutty black soldier fly grubs, explore the insect food industry and how it could benefit our health and our warming planet.

  • Wednesday October 20, 2021 9:00 pm ET on KET
  • Wednesday October 20, 2021 8:00 pm CT on KET
  • Thursday October 21, 2021 1:00 pm ET on KET
  • Thursday October 21, 2021 12:00 pm CT on KET
  • Friday October 22, 2021 2:00 am ET on KET
  • Friday October 22, 2021 1:00 am CT on KET
  • Sunday October 24, 2021 7:00 pm ET on KET2
  • Sunday October 24, 2021 6:00 pm CT on KET2
  • Tuesday October 26, 2021 3:00 am ET on KET2
  • Tuesday October 26, 2021 2:00 am CT on KET2
Jump to Upcoming Airdates

Recent

Bat Superpowers - S48 E10

  • Tuesday September 21, 2021 3:00 am ET on KET2
  • Tuesday September 21, 2021 2:00 am CT on KET2
  • Sunday September 19, 2021 7:00 pm ET on KET2
  • Sunday September 19, 2021 6:00 pm CT on KET2
  • Friday September 17, 2021 2:00 am ET on KET
  • Friday September 17, 2021 1:00 am CT on KET
  • Thursday September 16, 2021 12:00 pm ET on KET
  • Thursday September 16, 2021 11:00 am CT on KET
  • Wednesday September 15, 2021 9:00 pm ET on KET
  • Wednesday September 15, 2021 8:00 pm CT on KET

Extreme Animal Weapons - S44 E19

  • Tuesday September 14, 2021 3:00 am ET on KET2
  • Tuesday September 14, 2021 2:00 am CT on KET2
  • Sunday September 12, 2021 7:00 pm ET on KET2
  • Sunday September 12, 2021 6:00 pm CT on KET2
  • Friday September 10, 2021 2:00 am ET on KET
  • Friday September 10, 2021 1:00 am CT on KET
  • Wednesday September 8, 2021 9:00 pm ET on KET
  • Wednesday September 8, 2021 8:00 pm CT on KET

First Man on the Moon - S41 E22

  • Friday September 3, 2021 4:00 am ET on KET
  • Friday September 3, 2021 3:00 am CT on KET
  • Thursday September 2, 2021 4:00 am ET on KET2
  • Thursday September 2, 2021 3:00 am CT on KET2
  • Sunday August 29, 2021 10:00 pm ET on KET2
  • Sunday August 29, 2021 9:00 pm CT on KET2

Nature's Fear Factor

  • Wednesday September 8, 2021 1:00 pm ET on KET
  • Wednesday September 8, 2021 12:00 pm CT on KET
  • Tuesday September 7, 2021 3:00 am ET on KET2
  • Tuesday September 7, 2021 2:00 am CT on KET2
  • Sunday September 5, 2021 7:00 pm ET on KET2
  • Sunday September 5, 2021 6:00 pm CT on KET2
  • Friday September 3, 2021 2:00 am ET on KET
  • Friday September 3, 2021 1:00 am CT on KET
  • Wednesday September 1, 2021 9:00 pm ET on KET
  • Wednesday September 1, 2021 8:00 pm CT on KET

The Next Pompeii - S46 E6

  • Wednesday September 1, 2021 1:00 pm ET on KET
  • Wednesday September 1, 2021 12:00 pm CT on KET
  • Tuesday August 31, 2021 3:00 am ET on KET2
  • Tuesday August 31, 2021 2:00 am CT on KET2
  • Sunday August 29, 2021 7:00 pm ET on KET2
  • Sunday August 29, 2021 6:00 pm CT on KET2

Operation Bridge Rescue - S45 E16

  • Tuesday August 24, 2021 3:00 am ET on KET2
  • Tuesday August 24, 2021 2:00 am CT on KET2
Top

Season Episodes

Search Engine Breakdown

S48 E101 Length 20:37 Premiere Date 4.14.21

Bat Superpowers

S48 E10 Length 53:23 Premiere Date 9.15.21

Ship That Changed the World

S48 E9 Length 53:12 Premiere Date 6.2.21

Great Electric Airplane Race

S48 E7 Length 53:06 Premiere Date 5.26.21

Hindenburg: The New Evidence

S48 E6 Length 53:13 Premiere Date 5.19.21

Fighting for Fertility

S48 E5 Length 53:06 Premiere Date 5.12.21

Reef Rescue

S48 E4 Length 53:21 Premiere Date 4.21.21

Picture a Scientist

S48 E3 Length 1:33:06 Premiere Date 4.14.21

Looking for Life on Mars

S48 E2 Length 53:46 Premiere Date 2.24.21

Secrets in our DNA

S48 E1 Length 53:26 Premiere Date 1.13.21

Surviving an Elevator Fall

Clip Length 01:31 Premiere Date 8.23.10

Shabbat Elevator

Clip Length 02:42 Premiere Date 8.23.10

Six Questions with David Pogue

Clip Length 02:33 Premiere Date 1.4.11

A Mind for Music

Clip Length 04:05 Premiere Date 2.9.11

Modeling a Comet Airburst

Clip Length 03:20 Premiere Date 2.9.11

Green Energy in China

Clip Length 05:09 Premiere Date 4.12.11

A Strict Carbon Diet

Clip Length 02:58 Premiere Date 4.12.11

Brian Greene Answers Your Questions

Clip Length 01:07 Premiere Date 8.2.11

The 9/11 Memorial Mock-Up

Clip Length 01:54 Premiere Date 8.24.11

Solving an Engineering Problem

Clip Length 02:49 Premiere Date 8.24.11

Walls of Glass

Clip Length 02:29 Premiere Date 8.24.11

The Memorial Plaques

Clip Length 02:31 Premiere Date 8.24.11

Rebuilding 7 World Trade Center

Clip Length 01:48 Premiere Date 8.31.11

Specials

Picture a Scientist (with Audio Description)

Length 1:52:37 Premiere Date 4.14.21

Looking for Life on Mars (with Audio Description)

Length 53:46 Premiere Date 2.24.21

Beyond the Elements: Life (with Audio Description)

Length 53:17 Premiere Date 2.17.21

Secrets in our DNA (with Audio Description)

Length 53:26 Premiere Date 1.13.21

Treasures Metals Eiffel Tower

Length 02:09 Premiere Date 12.9.16

A Labyrinth of Lava

Length 01:13 Premiere Date 11.2.15

From Mud to Rock

Length 01:36 Premiere Date 10.22.15

Finding Stromatolites

Length 01:23 Premiere Date 10.22.15

Stromatolites Were Kings

Length 01:05 Premiere Date 10.22.15

Ancient Life

Length 00:28 Premiere Date 10.22.15

Millions of Years Captured in Chalk

Length 01:17 Premiere Date 10.22.15

A Fourteen-Foot Fish From Kansas

Length 01:38 Premiere Date 10.22.15

Hell Creek Formation

Length 01:10 Premiere Date 10.22.15

No Dinosaurs Above the Line

Length 02:00 Premiere Date 10.22.15

Mammal Survivors

Length 01:40 Premiere Date 10.22.15

Dinosaur Fossils

Length 01:53 Premiere Date 10.22.15

King of Gore

Length 02:00 Premiere Date 10.22.15

Driving Dinosaur Diversity

Length 01:47 Premiere Date 10.22.15

Pangea

Length 00:56 Premiere Date 10.22.15

Making Granite From Volcanic Rock

Length 02:16 Premiere Date 10.22.15

A Massive Volcanic Eruption

Length 01:14 Premiere Date 10.22.15

Rock Time Capsules

Length 01:18 Premiere Date 10.21.15

The Sandstone Top of the Canyon

Length 01:15 Premiere Date 10.21.15

Fossil-Filled Limestone

Length 00:54 Premiere Date 10.21.15

The Grand Canyon's Oldest Rocks

Length 00:19 Premiere Date 10.21.15

From Lava to Land

Length 02:14 Premiere Date 10.21.15

Semi-Precious Pebbles

Length 00:57 Premiere Date 10.21.15

Five Steps of Volcanic Rock

Length 00:26 Premiere Date 10.21.15

Tearing North America Apart

Length 01:01 Premiere Date 10.21.15

Fossilized Sand Dunes

Length 01:15 Premiere Date 10.21.15

Volcanoes of Sand

Length 01:33 Premiere Date 10.21.15

Rockies 2.0

Length 02:00 Premiere Date 10.21.15

Manhattan Schist

Length 01:13 Premiere Date 10.21.15

Manhattan Skyline

Length 00:52 Premiere Date 10.21.15

New York's Mountains

Length 01:13 Premiere Date 10.21.15

Monument Rocks 2

Length 01:48 Premiere Date 8.2.15

Exuma Cays 1

Length 01:26 Premiere Date 8.2.15

Exuma Cays 3

Length 00:28 Premiere Date 8.2.15

Exuma Cays 4

Length 03:22 Premiere Date 8.2.15

Gooseberry Falls 1

Length 00:57 Premiere Date 8.2.15

Gooseberry Falls 2

Length 00:24 Premiere Date 8.2.15

Gooseberry Falls 3

Length 01:06 Premiere Date 8.2.15

Gooseberry Falls 4

Length 01:01 Premiere Date 8.2.15

Mount Kilauea

Length 01:30 Premiere Date 8.2.15

Grand Canyon 1

Length 01:19 Premiere Date 8.2.15

Grand Canyon 2

Length 01:05 Premiere Date 8.2.15

Grand Canyon 3

Length 00:58 Premiere Date 8.2.15

Grand Canyon 4

Length 00:19 Premiere Date 8.2.15

Mendenhall Glacier

Length 02:51 Premiere Date 8.2.15

Monument Rocks 1

Length 01:18 Premiere Date 8.2.15

Lethal Seas Excerpt 4

Length 00:51 Premiere Date 5.12.15

Lethal Seas Excerpt 1

Length 04:11 Premiere Date 5.12.15

Lethal Seas Excerpt 2

Length 01:00 Premiere Date 5.12.15

Lethal Seas Excerpt 3

Length 00:35 Premiere Date 5.12.15

The Mother of Hubble

Length 02:28 Premiere Date 4.14.15

Formation of a Typhoon

Length 01:34 Premiere Date 6.25.14

Flatfish Larvae

Length 00:51 Premiere Date 5.6.14

RNAi Explained

Length 01:47 Premiere Date 4.22.14

Dolphin Mirror

Length 03:18 Premiere Date 4.22.14

Dogs' Sense of Time

Length 01:28 Premiere Date 4.13.14

Cockatoo Excerpt

Length 01:30 Premiere Date 4.8.14

How Solar Cells Work

Length 00:33 Premiere Date 2.26.14

Solar Power's Promise

Length 00:51 Premiere Date 2.26.14

Microneedle

Length 01:41 Premiere Date 12.30.13

GM Plants

Length 01:27 Premiere Date 11.15.13

Non-Newtonian Gel

Length 01:00 Premiere Date 11.15.13

Soft-Story Buildings

Length 07:36 Premiere Date 11.13.13

Animal Robot 1

Length 02:35 Premiere Date 10.24.13

Animal Robot 2

Length 02:02 Premiere Date 10.24.13

Therapeutic Hypothermia

Length 01:11 Premiere Date 10.24.13

Therapeutic Hypothermia 2

Length 01:07 Premiere Date 10.24.13

Therapeutic Hypothermia 3

Length 01:43 Premiere Date 10.24.13

Therapeutic Hypothermia 4

Length 02:01 Premiere Date 10.24.13

Levitation

Length 00:50 Premiere Date 10.24.13

Superconductor

Length 01:47 Premiere Date 10.24.13

Swarming Robots

Length 01:31 Premiere Date 10.21.13

Sneak Peek: Making Stuff Wilder

Length 06:14 Premiere Date 10.21.13

How Batteries Work

Length 00:49 Premiere Date 10.19.13

Muon Detection

Length 01:52 Premiere Date 10.19.13

Muons

Length 01:25 Premiere Date 10.19.13

Plants White

Length 02:11 Premiere Date 10.19.13

DNA Patch

Length 01:19 Premiere Date 10.19.13

DNA Vaccine

Length 00:38 Premiere Date 10.19.13

Earthquake Test

Length 02:03 Premiere Date 10.19.13

David Drives

Length 01:27 Premiere Date 10.19.13

Virus Battery

Length 02:21 Premiere Date 10.19.13

Shelley

Length 02:07 Premiere Date 10.19.13

Robot Arm

Length 00:56 Premiere Date 10.19.13

Elephant Arm

Length 01:22 Premiere Date 10.19.13

FinGripper

Length 00:55 Premiere Date 10.19.13

Sail Wing

Length 01:02 Premiere Date 10.19.13

Hydrofoil

Length 01:01 Premiere Date 10.19.13

Chicken Feathers

Length 01:56 Premiere Date 10.19.13

KillaCycle

Length 00:48 Premiere Date 10.19.13

Pitcher Plant

Length 01:48 Premiere Date 10.17.13

SLIPS

Length 01:01 Premiere Date 10.17.13

Hagfish

Length 00:51 Premiere Date 10.17.13

Hagfish Defense

Length 01:36 Premiere Date 10.17.13

Slime Clothes

Length 01:00 Premiere Date 10.17.13

New York City One Year Later: Telecommunications

Length 03:14 Premiere Date 10.16.13

David's Race

Length 01:28 Premiere Date 10.15.13

Steffen's Plan

Length 01:59 Premiere Date 10.15.13

Traveling Salesman

Length 01:21 Premiere Date 10.15.13

Sneak Peek: Making Stuff Faster

Length 05:06 Premiere Date 10.15.13

Eye Robot

Length 01:51 Premiere Date 10.10.13

Corkscrew Robot

Length 00:32 Premiere Date 10.10.13

Slow Goldfish

Length 01:39 Premiere Date 10.10.13

Bee Toxin

Length 01:31 Premiere Date 10.10.13

Mild Traumatic Brain Injury

Length 03:36 Premiere Date 10.7.13

Invisibility Cloak

Length 01:22 Premiere Date 9.24.13

Shape Memory Alloys

Length 00:32 Premiere Date 9.8.13

Jellyfish

Length 00:38 Premiere Date 9.8.13

Bird Wings

Length 01:56 Premiere Date 9.8.13

Shrinking Chips

Length 01:06 Premiere Date 9.5.13

Pizza Transistor

Length 01:34 Premiere Date 9.5.13

Graphene

Length 01:11 Premiere Date 9.5.13

Solar Leaves

Length 00:53 Premiere Date 8.29.13

Battle Jacket

Length 01:49 Premiere Date 8.29.13

Oobleck

Length 00:40 Premiere Date 8.29.13

Magnetic Oobleck

Length 00:54 Premiere Date 8.29.13

Life-Saving Non-Newtonian Fluids

Length 01:43 Premiere Date 8.29.13

Silicon Transistors

Length 00:50 Premiere Date 8.29.13

Wheat Straw Plastic

Length 01:04 Premiere Date 8.29.13

Starling 8

Length 00:44 Premiere Date 7.15.13

sandy-raw-1-2

Length 00:04 Premiere Date 7.8.13

sandy-raw-5-1

Length 01:02 Premiere Date 7.8.13

Chemotherapy Goes Small

Length 01:17 Premiere Date 7.1.13

The Climate Wild Card

Length 03:02 Premiere Date 6.30.13

The Making of a Cloud Old

Length 03:10 Premiere Date 6.30.13

Why So Many Cloud Types?

Length 03:35 Premiere Date 6.30.13

Clouds and Weather

Length 03:21 Premiere Date 6.30.13

Severe Storms

Length 03:37 Premiere Date 6.30.13

Life on Europa?

Length 02:25 Premiere Date 6.9.13

CloudLab_Megastorm_03

Length 01:41 Premiere Date 5.29.13

CloudLab_Megastorm_04

Length 01:43 Premiere Date 5.29.13

CloudLab_Megastorm_05

Length 01:04 Premiere Date 5.29.13

CloudLab_Megastorm_06

Length 00:40 Premiere Date 5.29.13

CloudLab_Megastorm_07

Length 03:07 Premiere Date 5.29.13

CloudLab_Megastorm_01

Length 00:35 Premiere Date 5.28.13

CloudLab_Megastorm_02

Length 00:31 Premiere Date 5.28.13

What Made the 1918 Flu So Deadly?

Length 01:28 Premiere Date 5.13.13

How the 1918 Flu Infected People

Length 00:25 Premiere Date 5.13.13

Fertilizing the Amazon

Length 03:27 Premiere Date 4.21.13

Flu Probabilities

Length 01:53 Premiere Date 4.16.13

Rare Earth Elements

Length 04:17 Premiere Date 4.1.13

CHNOPS: Ingredients for Life

Length 02:36 Premiere Date 3.12.13

MODIS Sensor

Length 00:26 Premiere Date 2.28.13

Electromagnetic Spectrum

Length 00:44 Premiere Date 2.28.13

Solving the Storage Problem

Length 02:26 Premiere Date 10.25.12

Putting Energy to Use Old

Length 02:14 Premiere Date 10.8.12

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